Premier League
A busy day of festive action in the Premier League got underway at 12.30pm.
West Ham manager David Moyes hopes to get one over his former team Manchester United in the early kick-off.
The hosts are aiming to extend their unbeaten run at the London Stadium to seven matches in all competitions.
Meanwhile, bottom side Burnley make the trip to Fulham at 3pm.
It will be a historic day at Craven Cottage, with Rebecca Welch becoming the first woman to referee a Premier League.
At the same time, Luton host Newcastle.
Nottingham Forest begin life under Nuno Espirito Santo with the visit of Bournemouth to the City Ground.
Spurs could spend Christmas in the top four with a win at home to Everton.
And at 5.30pm, Liverpool and Arsenal duke it out for the Christmas number one spot at Anfield.
Rugby
Ulster got their revenge against interpro rivals Connacht in the URC on Friday night.
After losing to the Westerners in Galway earlier this season, Dan McFarland's side were 20-19 winners at the Kingspan.
Meanwhile, there are two local derbies to look forward to on Saturday afternoon.
Zebre host Benetton in Parma from 1pm.
Then at 5pm, it's a North-South derby as the Stormers take on the Bulls in Cape Town.
