Chelsea have given their skipper John Terry until Friday to prove his fitness ahead of Sunday's FA Cup clash with Manchester City.
The 35-year-old missed out on Tuesday's Champions League clash with Paris Saint-Germain after he picked up a hamstring injury in last Saturday's win over Newcastle United.
Scans have confirmed that the injury isn't serious, but the club doesn't want to rush him into action.
However, Guus Hiddink will give Terry until the last minute to prove his fitness as Chelsea look to eliminate rivals City from the cup in a bid to boost their chances of winning silverware this season.