Puzzled about intricacies of knockout competitions? Everything you need to know about being cup-tied

What does it mean to be cup-tied?

Basically, you can’t play for two teams in the same cup competition in the same season.

Missed out: Defoe

Missed out: Defoe

So if you join a new club, you are ineligible for any competitions you have already played in. Are there examples?

Plenty. Portsmouth won the FA Cup in 2008 but had to do it without Jermain Defoe, who played in the competition for Tottenham before moving. Earl Barrett missed out on Everton’s 1995 triumph over Manchester United after appearing in an earlier round for Aston Villa.

Does it apply in Europe, too?

Oh yes. Had Samir Nasri played for Arsenal against Udinese, that would have been it for him in Europe this season. He would even have been ineligible for the Europa League, should that be City’s fate at the end of their Champions League group games.

However, should Luka Modric play for Spurs against Hearts tonight and then move to Chelsea, he would still be eligible for the knockout stages of the Champions League. Why?  While Arsenal and City played in the same competition, to begin with at least, Spurs and Chelsea didn’t.

Are there penalties for flouting the rules?

Don’t mention penalties. West Ham thought they were through to the 2000 League Cup semi-final after beating Aston Villa in a shootout, only to discover their 112th-minute substitute Manny Omoyinmi had played in an earlier round while on loan at Gillingham. They were ordered to replay the tie and duly lost it.

It’s pretty much set in stone, then, is it?

Almost but not quite. The FA reserve the right to waive it and did so in 1958, when, just days after the Munich disaster, Manchester United faced Sheffield Wednesday in the FA Cup. Unsure whether United could raise 11 players, the team sheet in the match programme was famously left blank. Stan Crowther and Ernie Taylor should have been ineligible, after appearing for other clubs in earlier rounds, but were allowed to play in a 3-0 United win.

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