Tuncay is unlikely to make his debut for Bolton in their Premier League opener at QPR.
The Turkey international is yet to be granted a work permit and will be forced to watch his new team-mates from the stands at Loftus Road.
Nigel Reo-Coker and Chris Eagles could both make their debuts in midfield but Tyrone Mears and Lee Chung-yong are ruled out with broken legs.
Provisional squad:
Jaaskelainen, Lainton, Steinsson, Riley, Cahill, Knight, Wheater, Robinson, Petrov, Reo-Coker, Muamba, Pratley, M Davies, Eagles, Alonso, K Davies, Klasnic, Blake.
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Source: Daily Mail
Source: Daily Mail