 He was part of the starting eleven as Birmingham won the 2011 League Cup, defeating favourites Arsenal 2–1 at Wembley Stadium.However, the season would prove to be less successful for both player and club, with Fahey making only 24 appearances in the league (although he did score his first Premier League goal), and Birmingham finishing 18th, and being relegated on the last day of the season, following a 2–1 defeat to Tottenham Hotspur.Following relegation from the Premier League at the end of the 2010–11 season, Barry Ferguson and Lee Bowyer left the club, giving Fahey the chance to establish himself in his preferred central position.