Clement played three centre-backs for the first time in his Swansea tenure as he attempted to negate United’s power and strength through the middle.
Kyle Bartley, who spent last season on loan at Leeds, started a Premier League game for the first time since December 2015 and £11million summer arrival Roque Mesa made his debut in midfield with skipper Leon Britton injured.
It was Swansea who created the first chance inside three minutes when Jordan Ayew charged down Bailly’s attempted clearance and advanced down the left.
Only Ayew will know if his scooped effort was an attempt on goal, but it appeared to bamboozle David De Gea who saw the ball bounce to safety off the crossbar.
United also went close seven minutes later when Phil Jones headed Juan Mata’s perfectly-flighted free-kick against the crossbar but, in truth, he should have done better.