Three days after battling German club Schalke to a 1-1 away draw in a Champions League playoff matchup, PAOK lost 2-0 to Greek league newcomer Panetolikos Saturday.
Milan Bojovic scored in the 27th minute and Paschalis Melissas added the second in first-half injury time for Panetolikos, which is playing in the top flight for just the second time in 36 years. PAOK, which won its league debut last Saturday, is seen as the main challenger to defending champion Olympiakos.
Former powerhouse Panathinaikos, rebuilding after a disappointing last season, lost 3-0 to Panionios, its heaviest defeat in 54 visits there.
Christos Aravidis and Dimitris Kolovos scored for Panionios, and defender Nikos Marinakis contributed an own goal.
Also Saturday, Veria beat OFI 2-0. [AP]