Lallana latched on to a Rickie Lambert header to score the first after 35 minutes and was on target from close range in the 54th minute as Nigel Adkins' men took their unbeaten run to nine league matches.

Second-placed West Ham are only ahead of Reading on goal difference as the Hammers drew with Doncaster while the in-form Royals beat Leicester.

Sam Allardyce's men made a great start as Kevin Nolan scored in the ninth minute, but Rovers hit back through James Coppinger (73).

Reading recorded their eighth straight win to join West Ham on 66 points, as goals from Mikele Leigertwood (15), Jason Roberts (75) and Simon Church (89) put them in control before Neil Danns scored a late consolation for the Foxes.

Blackpool dropped out of the play-off places after a 3-1 defeat at Peterborough.

Posh were looking to avoid a third straight loss and led 2-0 at half-time with goals from Tyrone Barnett (27) and Paul Taylor (43). Nouha Dicko pulled one back with 10 minutes to go, but George Boyd's 86th-minute strike from Tommy Rowe's cross made the points safe for Darren Ferguson's team.

Brighton are up to fifth as Vicente's double in the final 15 minutes earned them a 2-0 win over Portsmouth, who have now failed to win any of their last eight.

The midlands derby between Coventry and play-off hopefuls Birmingham at the Ricoh Arena finished 1-1 as Gary McSheffrey and Marlon King scored against their former clubs. The result left the Sky Blues still in the bottom three.

Hull stayed ninth after they were pegged back from 2-0 up to draw 2-2 at home to Ipswich. Goals from Robbie Brady (17) and Robert Koren (54) put the Tigers in charge but Grant Leadbitter scored twice in three minutes for Paul Jewell's men.

Watford won 2-1 at Derby as goals from Sean Murray and Troy Deeney inside the first 15 minutes gave them the perfect start at Pride Park. Ben Davies replied for the Rams after half an hour.

Derby's east midlands rivals Nottingham Forest won 3-1 at home to Millwall to boost their survival hopes. They led 2-0 at half-time thanks to goals from Garath McCleary (25) and Danny Higginbotham (38) before Darius Henderson's 14th goal of the season gave the Lions hope with 26 minutes left. However, Forest wrapped it up with a 20-yard strike from Andy Reid 10 minutes from time.

Burnley and Crystal Palace drew 1-1 at Turf Moor with a penalty apiece. Jay Rodriguez scored from the spot in the second minute with his 15th of the season, but the Eagles hit back through Darren Ambrose's 63rd-minute penalty and held on to make it just one defeat in 10 league games despite the dismissal of Wilfried Zaha.