England head coach Trevor Bayliss is optimistic that Jos Buttler will be fit to face the West Indies on Friday in Southampton.
Buttler hurt his right hip while batting in England's win against Bangladesh.
He was scheduled to join his team-mates during a practice session on Wednesday and Bayliss said: "Yes, he's fine. He'll be taking part in today's practice fully.
"It was a little bit precautionary the other day. He said he could have kept, but he wasn't really sure if he would be able to run after a high catch."
Asked if Buttler might play as a specialist batsman, Bayliss kept his options open.
"I haven't really thought about it. We'll make that decision in the next day or so," the Australian said.
"We'll see how he pulls up and how he performs at practice. I'm expecting him to play a full part."
Buttler has been in fine form with scores of 18, 103 and 64 in the World Cup so far.
Should Buttler fail to prove his fitness, James Vince would likely replace him in the side.
Moeen Ali is also eyeing a return to the team after sitting out the Bangladesh game in Cardiff.
Moeen was excused from training on Wednesday after the birth of his new baby daughter Haadiya.
He will rejoin the squad for final preparations on the eve of the West Indies game.
The West Indies clash will mark a first outing for Barbados-born Jofra Archer against a side containing several of his Caribbean friends and peers.
The 24-year-old suggested at the weekend he would be treating the game like any other, but Bayliss believes it would only be normal if the stakes were slightly elevated.
"He's looking forward to it, obviously knows a few guys in their team," said Bayliss.
"It's always bragging rights. Both sides of the argument would like to gain the upper hand in that argument. Let's wait and see.
"It will be the first time he has come up against those guys, but I am sure he is wishing to do well. I am not sure he could be any more confident -- he is a confident young man who has fitted into the group very well.
"He is a typical young fast bowler. He wants to bowl fast, he wants to take wickets and that has to be a good thing for England."