Matheus Nunes, a midfielder for Wolves, will be punished for skipping practice in an effort to join Manchester City.
The 25-year-old international from Portugal had a £47 million approach from Premier League leaders City rejected last week.
Wolves anticipate a better offer before Friday night's transfer deadline, though.
Gary O'Neil, the team's manager, did not give Nunes permission to miss training on Sunday or Monday.
Nunes, who has made it plain that he wants to play for Pep Guardiola's team, is reportedly worth more than £60 million to Wolves.
The Midlands club paid Sporting Lisbon a club-record £38 million to recruit the player to a five-year contract last summer.
Nunes played a significant role in Wolves' successful avoidance of relegation and 13th-place finish in the standings during the second half of the season.
