The deal could be worth AED251 million.
Sane, 24, says Bayern Munich is a "great club " after he signed a five-year contract at the Bundesliga side.
The Germany winger is leaving Manchester City who he joined from Schalke in 2016 for AED169 million.
The football star has won two Premier League titles, the FA Cup and two League Cups.
He says his priority is to win as many trophies as possible with Bayern, and he's targeting the Champions League.
Stoppage-time comeback gives Burkina Faso victory in opener
Two goals deep in second-half stoppage time saw Burkina Faso snatch a 2-1 victory over 10-man Equatorial Guinea in the opening Group E match at the Africa Cup of Nations finals on Wednesday.
Archer out of Ashes, England drop Pope from Boxing Day test
A side strain ended England fast bowler Jofra Archer's Ashes campaign on Wednesday while the beleaguered tourists dropped batter Ollie Pope for the fourth test against Australia.
Martha Stewart joins Snoop Dogg as Swansea minority co-owner
American businesswoman and television personality Martha Stewart has joined Swansea City as a co-owner, the Welsh football club announced on Tuesday.
Arsenal edge Palace on penalties to reach League Cup semi-finals
Arsenal have edged past Crystal Palace on penalties on Tuesday to reach the semi-finals of the League Cup when goalkeeper Kepa Arrizabalaga saved a spot kick from Palace defender Maxence Lacroix.
MI Emirates head to playoffs after an eight-wicket win over Gulf Giants
MI Emirates have sealed their playoff berth after a comfortable eight-wicket win over the Gulf Giants during the at the Zayed Cricket Stadium on Tuesday.
