Romelu Lukaku scored his first Manchester United goal as Jose Mourinho’s side overcame Real Salt Lake 2-1 in a pre-season friendly in Utah.
The Belgian, 24, who signed from Everton for £75m, got the winner seven minutes before half-time to add to Henrikh Mkhitaryan’s equaliser after United had fallen behind on 20 minutes.
Lukaku latched on to a ball from the left from Henrikh Mkhitaryan, managed to compose himself, controlling inside the penalty area, before rounding Real Salt Lake’s keeper and slotting past a defender on the line.
Mata limped off following a heavy challenge from Sebastian Saucedo but is expected to be out of action for a week at most.
Valencia was then sent off for a tackle on Saucedo, referee Allen Chapman speaking to Mourinho before belatedly dismissing the Ecuadorian.
Mourinho changed his team entirely at half-time, meaning Lukaku will have to wait until United’s clash with Manchester City on Friday (3am) to try and net his second.