Nottingham Forest striker Robert Earnshaw could be ruled out for up to a month with a calf problem.

Earnshaw picked up the injury while training with the Wales squad and could be out for "three to four weeks," according to Forest manager Billy Davies.

Earnshaw was preparing for Wales' World Cup qualifier against Finland when the problem flared up.

Despite flying out to Helsinki with the rest of the squad, the 28-year-old was released on Friday and immediately flown back to England to be assessed by the Forest medical team.