ess Association27Roy Keane takes the long walk after seeing red in thrilling FA Cup semi-final replayArsenal appeared to be in the ascendancy as Nicolas Anelkas goal was ruled offside and Roy Keane saw red late on. But, just like when the 29-year-old was at Newcastle United and Hull City, his attitude has been questioned by PSG boss Unai Emery. News Group Newspapers Ltd22Laurent Koscielny has become Mr Reliable for Wenger, and is one of the first names on the teamsheetMesut OzilThe £42. His manager went on to describe him as the best right-back in the Premier League as he made over 200 appearances before joining Manchester City. The skipper who turns 31 next month turned in?yet another lacklustre performance against Northampton. Cup double, and went on to make 118 appearances for the Gunners before joining Barcelona in 2000 for £7million. Yet again, he was another who swapped positions, from defensive midfield to centre-half, and the decision reaped instant rewards. United’s EFL Cup win sees the Red Devils secure a home draw against arch-rivals Manchester City in the next round of the competition. He made 326 appearances under Wenger, before moving to Manchester City in 2009. remier League title tilt this seasonHere, SunSport takes a look at the top 20 signings of his Arsenal tenure… and don’t forget to have your say on who was the best ever in the poll below.