The winger shrugged off the illness to show again what he can do in the team's magnificent 3-2 victory in the Premier League.
Having linked-up with Jan Vertonghen for the first goal, Gareth broke to devastating effect to score a superb second and put us firmly in the driving seat, 2-0 up at half-time.
United hit back after the break and reduced arrears to 3-2 after a spell of three goals in two minutes, but we then showed great defensive resistance to hold on for a landmark win.
As one of our longer-serving players, the win meant the world to Gareth - who actually made his debut for us at Old Trafford fully five years ago, back in August, 2007.
"Ever since I’ve been at the club, every time we come here we seem to either get a lead and lose it or get beaten," said the Welsh flyer.
"Over the last 20-odd years it’s been one of those things that happens in football, but now it’s finally over.
"The lads are absolutely ecstatic, delighted to get the three points and put ourselves right back in there at the top of the table."