Frank Acheampong's extra-time double gave Anderlecht a 2-1 victory at Olympiacos and a place in the last 16 of the Europa League.The Belgian side led 1-0 after the first leg, but Konstantinos Fortounis levelled the tie in the 29th minute of Thursday's second leg from the penalty spot, after Serigne Mbodji, who got the goal in last week's game, had been penalised for handling in the box.There was no further scoring before Ghanaian Acheampong decided the contest in extra-time, beating home goalkeeper Roberto from a tight angle two minutes before the turnaround, then finishing calmly seven minutes after it following a pass from Andy Najar.ends