Recent events in Europe and the United States have only magnified challenges, with new
question marks over global economics, currency trends and future trade tariffs.
In the wider market, there may still be
question marks over the wider potential for connected devices like activity trackers.
There will always ultimately be
a question mark over whether a fund manager's performance is down to skill or luck.
I think what shook markets across the globe was not the size of Greece's economy or financial system, but more the prospect of a Greek exit from the eurozone, which would have put a big
question mark over the irreversibility of the entire euro system.
Puts a massive
question mark over his mitre.
They place another serious
question mark over the modern rite because it could be argued that the options and emphasis on interaction that is now an essential aspect of it have contributed to this situation.
At very best there's a huge
question mark over what that is.
The pope's position seemed to put
question marks over the reliability of Catholic troops, who owed loyalty to Rome.
In his two previous seasons at Old Trafford, there have been
question marks over his defensive ability, with the 26 - year - old often being seen as a liability.
If the deal does go ahead the Portuguese manager will likely install the 20 - year - old as his third choice striker behind Diego Costa and Radamel Falcao, which would then raise
question marks over Loic Remy's future at the club.
The United captain hasn't looked the best in midfield and there's
question marks over why he keeps getting played there but van Gaal will likely continue this selection with no indication given that he will change.
While Andres Iniesta will turn 34 later this year, the likes of Sergio Busquets, Ivan Rakitic and Paulinho are all closing in on the 30 mark as there are
question marks over the long - term plan in that department.
Arsenal were dealt with a huge blow, as Ramsey was red - carded; Arteta injured his ankle, raising serious
question marks over the North Londoners» chances of winning the second leg at home, which was the only way to progress through.
There are
question marks over his future as it appears the Chilean wants a move away from The Emirates but Wenger assured fans he will be an Arsenal player after the transfer window closes and this maybe it the most important thing the club can do in order to mount a title push.
Nevertheless, there are undoubtedly still big
question marks over their display and they'll need to produce more convincing performances moving forward.
With
question marks over Gareth Bale, Karim Benzema and Cristiano Ronaldo due to injuries, lack of form and age, Los Blancos could be plotting an ambitious rebuild for the long - term future.
In turn, that has naturally led to
question marks over his future at Milan, and while the club will surely be wise to show a little more faith in him to give him another year to adapt and prove his worth, there's no denying that the youngster is under pressure and hasn't delivered with Patrick Cutrone surpassing him in the pecking order.
2021 is a definite possibility, then, but Aston entering in 2019 appears to be a no - go, leaving
some question marks over what engine is going to power the Red Bull cars.
His exclusion has produced an angry response from some who believe he should be in ahead of other midfielders with
question marks over their fitness.
There were
question marks over Rashford's place in the England squad, with the Manchester United man seemingly only included due to Danny Welbeck's injury.
DL: Juan Bernat There is a certain
question mark over the left - back position for City, with Gael Clichy turning 30 this year and Aleksandar Kolarov linked with a move back to Serie A.
While he has certainly made an important contribution since his arrival in north London, there have always been
question marks over whether or not he's the type of striker to lead Arsenal to a Premier League title and other major honours.
There are
question marks over Theo Walcott and Olivier Giroud in the central striking role at the Emirates, but both men scored more than Insigne last time round.
Barca currently trail rivals Real Madrid by six points in the title race, albeit they have a game in hand, but they have failed to deliver consistently this season which has also led to
question marks over Enrique's future.
Naturally, the addition of the Brazilian playmaker will add to the competition at the Nou Camp, and as Rakitic prepares to soon turn 30, it will raise obvious
question marks over his long - term future in the starting line - up.
Mind you it does put a huge
question mark over Max's ability to make 145 for much longer and highlights a problem with his ballooning weight out of competition.
While they have hope of silverware in the form of the FA Cup and Champions League, there are still
question marks over this current United squad as they continue to show signs of faltering.
And there have been
question marks over the Spaniard's future in North London after a series of injuries have kept him on the sidelines for extended periods this campaign.
If there were
question marks over why Balotelli was signed in the summer, there will be even more people wondering why Rodgers threw on a player with only two goals all season at such a decisive moment in his side's season.
There remains
question marks over the validity of the reports.
In turn, it surely raises
question marks over whether or not an agreement on personal terms will be reached, as that is a significant difference between the two parties which will require lengthy negotiations to reach a compromise.
The Argentine international found himself out of the team last month after the arrival and instant impact of Gabriel Jesus, which in turn created
question marks over his future at the Etihad.
Not
another question mark over fitness because he is available on the cheap!
In turn, there are
no question marks over how crucial he can be for his side, and so that makes Le 10 Sport's claim that PSG are interested in signing him not the least bit surprising.
I've got one or two
question marks over his weight — he's apparently only 11 and a half stone which isn't much more than the much shorter Alexis.
Although he will go into the landmark day with
some question marks over his performances in recent years, few can dispute the scale of the achievement itself.
That's why there is so little consensus on who the first pick should be, too many positions exposed and too many
question marks over players who were supposed to shine.
Having convinced him that they would eventually reach a deal after visiting their offices, as per the report, Coutinho feels let down by the La Liga outfit and it now raises
question marks over their ability to sign him in the future.
There also remains
a question mark over mentality.
Sean Dyche was quick to vent his fury with the winner, claiming there is also
a question mark over the time added on, with two minutes held up by the fourth official, and the goal coming after the clock read 92:00.
With Walcott and welbeck likely out and
a question mark over sanchez wheres gnabry?
The Bosnian has been one of the our better players this season, and there is
no question mark over his ability, but we most certainly need more options at present.
In turn, that has raised serious
question marks over his future at Anfield beyond this season, and according to Tuttosport, Juventus are ready to complicate matters further.
With John Terry set to move on this summer, coupled with Branislav Ivanovic's exit earlier this year as well as general
question marks over the depth and age of the backline, signing Van Dijk makes sense on various fronts.
There is
no question mark over our goalkeeper.
However, the combative and powerful midfielder seems to still have
question marks over his future, and the closer we move to next summer with no new agreement in place, it will leave the risk of seeing him depart on a free transfer open.
For years we have seen summers of turmoil with players leaving, especially captains, with players injured from the start and constant
question marks over who will actually be starting the season for us.
Meanwhile there are
question marks over Theo Walcott, Olivier Giroud, and Danny Welbeck in the central striker position at the Emirates.
I have
question marks over the rumoured targets of Martinez, Higuain and Benzema, though immensely talented, will be happy to come in, bust their guts out in training and come off the bench with 10 - 20 mins remaining and put in performances that demand a first - team place?
Liverpool suffered a 3 - 2 defeat to Swansea City at Anfield on Saturday, which in turn leaves big
question marks over their Premier League title hopes.