LONDON, England (AFP) — Arsenal’s season of woe took another miserable turn yesterday as the Premier League giants crashed out of the FA Cup in a 2-0 defeat at Sunderland.

Arsenal — all but eliminated from the Champions League in midweek following a 4-0 rout by AC Milan — saw their last realistic chance of ending a seven-year trophy drought snuffed out at the Stadium of Light.

Kieran Richardson took advantage of a poor clearance to lash in Sunderland’s opener in the 40th minute before more shoddy Arsenal play culminated in a 77th-minute own goal from Alex Oxlade-Chamberlain.

The defeat means Arsene Wenger’s side are left with only qualification for next season’s Champions League to play for this term, and provides further ammunition for Arsene Wenger’s growing legion of critics.

Wenger had uncharacteristically criticised his players in public following the Milan defeat and demanded a response against Sunderland.

However, Wenger’s men were always struggling to impose themselves as Martin O’Neill’s advanced to the quarter-finals with an energetic display.

Elsewhere yesterrday, Chelsea manager Andre Villas-Boas’ problems mounted after his side laboured to a 1-1 draw with lower league Birmingham.

Daniel Sturridge headed home a second-half equaliser to save Chelsea’s blushes at a restive Stamford Bridge after David Murphy had fired Birmingham into a shock lead on 20 minutes.

Villas-Boas’ position has come under scrutiny following reports of a training ground mutiny by his senior players after last weekend’s Premier League defeat against Everton at Goodison Park.

His team have now won just one game in their last six games across all competitions and Villas-Boas was forced to watch as his side were booed off the field following another unconvincing display.

Elsewhere in the last 16, Championship side Leicester claimed a Premier League scalp as David Nugent’s second-half winner clinched a 2-1 victory at Norwich.

Nigel Pearson’s team made the perfect start through Irish defender Sean St Ledger, who headed in Ben Marshall’s corner in the fifth minute.

Norwich equalised in the 23rd minute when Leicester goalkeeper Kasper Schmeichel gave away a penalty with a foul on Elliott Bennett.

Schmeichel saved Wes Hoolahan’s spot kick, but couldn’t prevent the midfielder scoring from the rebound.

However, Nugent gave Leicester victory when the former England striker latched onto Jermaine Beckford’s flick and fired home in the 71st minute.

Japanese teenager Ryo Miyaichi inspired Bolton as the struggling Premier League side brushed aside Championship outfit Millwall 2-0 at The Den.