Manchester City fear Aymeric Laporte could face a lengthy lay-off after suffering a serious-looking knee injury in the champions' 4-0 victory over Brighton on Saturday.
Match of the Day pundit Jermaine Jenas said the injury could have a massive impact of their title challenge.
He said: 'It doesn't look good and it will be something that will annoy Pep Guardiola.
'He's all about the details and it's a poor pass from Zinchenko in the first place, Rodri then should be bringing down Webster as they're on the counter attack and you can give away a foul.
'Laporte has to come out and make the challenge and he gets it wrong.
'The action on his knee does not look good and the way he played last year and how good he is, this is the type of bad injury that shifts the title towards Anfield.'