Saturday sport: Leinster, Munster and Ulster in Champions Cup action

Arsenal manager Mikel Arteta says there's no more room for error if they're to maintain a challenge for the Premier League title.

A win over Crystal Palace this lunchtime would move them to within two points of leaders Liverpool.

Arteta's side return from a winter break having lost their last three matches in all competitions.

The only other game of the day sees Nottingham Forest travelling to Brentford at 5.30pm.

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Algeria are looking to take top spot in Group D from Burkina Faso in the opening game of the day's action at the Africa Cup of Nations.

They meet at 2pm while fellow Group D sides Angola and Mauritania meet at 5pm. Then it's the clash of Tunisia and Mali in Group E at 8pm tonight.

Meanwhile, it's been confirmed that Mo Salah will miss Egypt's next two games at the tournament through injury.

He limped out of their draw with Ghana on Thursday evening just before half-time.

The Liverpool forward will sit out the final group game against Cape Verde and any potential last-16 match.

Ulster are looking to keep their chances of reaching the knockout stages of the European Champions Cup alive this afternoon. A bonus point win over Harlequins would guarantee them a place in the last 16.

They meet at 1pm, at the same time the Bulls play host to Bordeaux. Later, Leinster and Leicester Tigers meet at Welford Road from 3.15pm with Cardiff travelling to Racing 92.

It's a 5.30pm for the game between Munster and Northampton and the clash of Stade Francais and Stormers.

The late game this evening sees Saracens play Lyon at 8pm.

Rory McIlroy has taken the lead after his third round at Dubai Desert Classic on the DP World Tour. An eagle on the final hole left him on 9 under for the day and