According to latest rumours, the 20 million euros exit clause set by Tianjin Quanjian on Belgian international midfielder Axel Witsel (29) might have been viable only before CSL transfer market closure, that is last July 13. Legal side representing Borussia Dortmund have instead allegedly advised the club the clause is still on, bringing German club to bid CSL side the whole sum. If the transfer took place on such terms, FIFA might decide to appeal against Bundesliga side.
Source: transfermarketweb.com