The phrase "knockout stages" refers to a round of a competition, usually in sports, where teams or individuals compete against each other and the losing participants are eliminated until a final winner is determined. Full definition
The two teams could however be able to qualify for the first knockout stage. (arsenaljerseys.net)
GENT and WOLFSBURG are the only a couple of knockout stages of the Champions League that has not already met at least once in European competitions for the past decade. (footballtarget.com)
Feyenoord who are currently top of the table with 7 points can book their place in knockout stages with a win and having already beaten United earlier in the season they will be confident of atleast getting a point at Old Trafford. (totalsportek.com)