England U19 and West Ham star Daniel Potts in hospital as Arsenal hit five

England U19 defender Danny Potts was rushed to hospital after a clash of heads in Arsenal's 5-1 victory over West Ham left him badly concussed.

The West Ham starlet, 18, collapsed to the floor following a clash with Bacary Sagna and the match was held up for almost ten minutes as he was treated on the pitch and then taken off on a stretcher.

West Ham manager Sam Allardyce said: "Danny has obviously gone straight to hospital with concussion.

"He was unable to give the correct answers to the question the doctor asked him, which shows concussion to the brain.

"So they put him on oxygen and strapped him to the stretcher the right way just to make sure there was no more damage to the neck or the spine.

"When you get knocked out hit the floor like that, it could be a problem. We don't think it is - but  we just have to leave the hospital to monitor him through the night and hopefully make a speedy recovery.

"But even if it is just concussion it will be a certain amount of time, having lost consciousness, that he will have to go through before he can play again. I think it's a minimum of two weeks."

Potts is in the England U19 squad to play Denmark in Doncaster on Tuesday 6 February, so updates for that game will be available on TheFA.com when news is available.

England striker Theo Walcott continued his recent impressive form as he scored his 16th goal of the season in Arsenal's convincing 5-1 victory, while midfielder Jack Wilshere once again impressed and was involved in at least two of the Gunners goals.

Walcott scored his team's fourth as Arsenal came from 1-0 down to win the game, including an incredible spell of four goals in ten minutes early in the second half.

Olivier Giroud (2), Santi Cazorla and Lukas Podolski also scored for the home team while Jack Collison opened the scoring for West Ham.

Elsewhere, Chelsea fielded England players Frank Lampard, Ashley Cole and Gary Cahill but couldn't overcome Swansea in the second leg of their League Cup semi-final. The match ended 0-0 with Swansea going through 2-0 on aggregate. They will meet Bradford City in the final at Wembley.