Beşiktaş came from behind to beat Turkish Süper Lig leader Galatasaray 3-1 on April 30 night, throwing itself back in the trophy race with six weeks to go.
Argentine star Mauro Icardi put the visiting side ahead in the 20th minute at Vodafone Park, but Romain Saiss leveled the score in the 35th minute.
Panathinaikos and AEK canceled each other out on Sunday their crucial game in the Super League playoffs finishing goalless and the title race remaining wide open with a slight advantage for the Greens.
AEK needed victory more than its host and produced more chances against the best defense in the league this year - that has only conceded once in seven playoff games to date.
Olympiakos has extended its men's volleyball league title record to 31 trophies after seeing off rival PAOK in the Volley League finals.
The Reds have won the best-of-five series with a 3-1 score, securing two victories at home and winning at Thessaloniki on Friday, with a 3-0 result too, to clinch the title and return to their throne.