Celtic recently announced the permanent signing of Odsonne Edouard, and Leigh Griffiths has discussed the possible impact of strong competition for places.
Celtic defender Dedryck Boyata was in action for Belgium on Monday.
Frank McGarvey says that Celtic ace Leigh Griffiths is the best centre-forward in Scotland.
Wolves are expected to be busy in the summer window after gaining promotion back to the Premier League.
Griffiths struggled at Celtic this season with a number of niggling injuries.
Leigh Griffiths played an important part in Celtic's treble-winning season.
Leigh Griffiths says that he could sign a new contract with Brendan Rodgers’s Celtic soon.
Celtic striker Leigh Griffiths says he will be back in training with his teammates on Thursday.
Leigh Griffiths aimed a dig at former Rangers manager Pedro Caixinha, nominating him for the Celtic Player of the Year award.
Leigh Griffiths starts for Celtic against Hibernian in the Scottish Premiership this afternoon.