The Spaniard won the Champions League on three occasions with Barca before leaving on a free transfer last summer and is now training with the Manchester United reserves after a row with manager Louis van Gaal. (caughtoffside.com)
The 31 - year - old arrived at Selhurst Park on a free transfer last summer, but has been limited to just 10 appearances in all competitions with his last Premier League outing coming back in November. (caughtoffside.com)
The 26 year old is reportedly unsettled at the German giants, having moved to the Allianz Arena from Borussia Dortmund on a free transfer last summer, and is seen by Louis van Gaal as a better option than loaned in Colombian Radamel Falcao. (caughtoffside.com)