Cardiff City manager Ole Gunnar Solskjaer has admitted that Craig Noone's lingering groin injury is a concern.
Noone sat out yesterday's friendly against Bath City and is now set to undergo further tests after struggling with the problem towards the end of last season.
"He certainly needs to work on it because he had the problem last March," BBC Sport quotes Solskjaer as saying.
"He's worked throughout the summer and it's come back so we'll have to have a look at it."
Noone, 26, made 17 appearances in the Premier League last season, scoring one goal.