Thomas Mueller made his Major League Soccer debut on Sunday as a second-half substitute for Vancouver Whitecaps in a 1-1 draw with Houston Dynamo that left the Germany great with “mixed feelings” after he had a goal disallowed for offside.

Vancouver were up 1-0 courtesy of Brian White’s sixth-minute penalty when the former Bayern Munich striker Mueller entered the contest to a massive ovation in the 61st minute. 

Minutes after entering the game Mueller, a World Cup-winner, blasted a ball into the back of the net, but it was ruled offside.