Monday 11 January 2016 10:00, UK
Joe Launchbury is the latest injury worry for new England coach Eddie Jones after he was taken off in a dazed condition during Wasps' 32-22 victory over Worcester in their Aviva Premiership clash at the Ricoh Arena.
The second-row forward suffered two knocks to the head during the game and will undergo tests over the next few days to determine his exact condition.
Wasps boss Dai Young said: "He's taken a nasty head knock but he's up and about. He's talking and appears to be fine but will have to go through the relevant protocols.
"It could take one or six weeks, it's impossible to tell at this stage."
Jones is due to name his first Elite Player Squad on Wednesday and already has concerns over George Kruis, Jack Nowell and Dylan Hartley.
Saracens lock Kruis was carried off with concussion during his team's 29-23 defeat at Harlequins on Saturday, while Exeter wing Nowell twisted his knee in the Chiefs' 19-10 win over Gloucester.
Northampton hooker Hartley missed the Saints' narrow defeat at Leicester with a rib problem, a game which saw the return of Tigers centre Manu Tuilagi following a lengthy absence.
One man keen to be included in Jones' squad ahead of the Six Nations is Wasps skipper James Haskell.
"I want to play for England, it's the reason I get up in the morning and put my body through hell," said the back-row forward after leading his side to victory over the Warriors.
"I haven't heard anything from the coach but I believe my form is good.
"We made life difficult for ourselves today as we weren't ruthless enough. It was nerve-racking but I had faith in the boys."
