As a result of the late start, Tottenham were handed a €25,000 fine by Uefa’s control, ethics and disciplinary body (CEDB), as well as a further €3,000 for a breach of Uefa’s equipment regulations.
The CEDB decision said the ban was “deferred for a probationary period of one year, starting from the date of the present decision”.
Another condition was that Tottenham should “ensure their head coach is personally informed of this decision”.
Tottenham lost the match in Belgium last month, with Mourinho making four changes at half-time.
Scottish champions Celtic were fined €7,000 for improper conduct related to their Europa League game against Lille on the same night.
Celtic drew the match as they let slip a 2-0 half-time advantage.
This weekend get a £10 free bet with Betfair, when you bet £10 on a Same Game Multi on the Premier League. Terms: Min £10 Same Game Multi bet on any EPL match this Fri – Sun. Free bet valid for 72 hours, awarded at bet settlement. Excludes cashed out bets. T&Cs apply.