The Oasis reunion could come earlier than expected.
The Britpop-era band ended a 15-year hiatus last week by announcing a tour of the British Isles next summer, with 17 gigs selling out on Saturday following a scramble for tickets by Oasis fans.

However, Liam and Noel Gallagher, the once-feuding brothers who are the face of Oasis, could be on the stage together way before then if a Saudi boxing promoter gets his own way.

Liam is slated to perform some hits at Wembley Stadium in London on Sept. 21 ahea …