King may miss the remainder of the T20 World Cup due to a "worrying" side injury.

Following a side strain he sustained during Wednesday night's West Indies versus England encounter in St Lucia, Brandon King is questionable for the remainder of the T20 World Cup.

King got the West Indies off to a great start, racing to 23 off 12 balls, including a massive six from Reece Topley that went past the midwicket boundary with the wind and required a replacement ball.

However, he was hurt when he sprinted down the pitch in an effort to knock Sam Curran through cover while facing his thirteenth ball.

King proceeded one step further before collapsing and being forced to withdraw injured, following treatment by a medical staff member from the West Indies.

He did not field in England's run chase, with Shimron Hetmyer replacing him as a substitute fielder, and Cricket West Indies confirmed he had been diagnosed with a side strain.

"Brandon King has suffered a side strain and will not return to the field of play in this evening's match," CWI said.

Side strains tend to take several weeks to heal fully, making King a major doubt for the rest of the World Cup with only 10 days remaining before the end of the tournament. Captain Rovman Powell admitted that King's injury was a "worrying" sign for his side.