England coach Stuart Lancaster has admitted that Sunday's Six Nations clash with Wales could come too soon for Manu Tuilagi despite the centre's return to the squad.
Tuilagi made his comeback for Leicester Tigers last weekend after spending the past five months sidelined with a chest problem.
"Manu has only played the one game this weekend and one game at the start of the season since the Lions tour," Lancaster is quoted as saying by BBC Sport.
"He hasn't spent any time in camp with us whatsoever. We've not made a final decision yet but it would be a big step for Manu."
England are currently in second place in the Six Nations table, level on points with leaders Ireland, third-placed Wales and fourth-placed France.
