Persepolis and Esteghlal secured progress as group winners, but Al Ain were the stars of the day with their 4-1 win at Al Rayyan.
Al Sadd, Persepolis and Esteghal have all made it to the knockouts of the AFC Champions League, but last season's finalists Al Hilal crashed out against Al Ain.
There is nothing to choose between Nasaf, Al Sadd and Persepolis at the top of Group C in the AFC Champions League.
Shanghai SIPG had no problems continuing their winning start to AFC Champions League Group F, beating Melbourne Victory 4-1 on Tuesday.
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