Alex Oxlade-Chamberlain has given England a World Cup boost with progress from a groin problem in training for Arsenal.

Arsène Wenger has been worried that Oxlade-Chamberlain might require rest, if not surgery, should the attacking midfielder fail to show positive signs from the injury that has hampered him since the FA Cup semi-final win over Wigan Athletic on 12 April.

Any significant lay-off would wreck the 20-year-old's hopes of making Roy Hodgson's squad for the finals, which the manager will name on Monday. Hodgson is understood to want to pick Oxlade-Chamberlain in his 23, fitness permitting.

Oxlade-Chamberlain was the man of the match in Arsenal's penalty shootout victory against Wigan at Wembley, when he ran himself into the ground over the 120 minutes, and he has featured only fleetingly since, as a late substitute in the Premier League win at Hull City on 20 April.

But he came through a training session on Thursday to offer reassurance that he will be ready for the World Cup. He will not feature at Norwich City on Sunday, in Arsenal's last league fixture of the season, and he has only an outside chance of making the FA Cup final on Saturday week against Hull. Yet he and Arsenal's medical staff are confident that he will be in shape for England's pre-World Cup warm-up fixtures.

Jack Wilshere stands to be a key part of Hodgson's squad and could play, according to Wenger, at Norwich. The midfielder has not featured since he fractured a foot for England against Denmark on 5 March.

Wenger had hoped to have him back for last Sunday's home game against West Bromwich Albion, leading to the suspicion that he had suffered a setback. But Wenger has moved to reassure Hodgson and England. "Jack will be ready for the World Cup," the Arsenal manager said.

Hodgson has concerns over the Tottenham Hotspur right-back Kyle Walker and the Manchester United defender Phil Jones. Walker has carried a groin problem for much of the year and has not played since 13 March. Jones was forced off with a shoulder injury against Hull on Tuesday night.