Manchester City will have to wait for a little longer to learn the extent of John Stones and Nathan Ake's injuries in Wednesday night's 3-0 win over Brighton.
The Premier League defending champions regained their top spot with a hard-fought 3-0 at home to the Seagulls, but it came at a cost.
Ake was withdrawn at half-time, same as Stones, who had to make way just before the final whistle.
This presents Guardiola with an unwanted situation, considering Kyle Walker is still out with an injury while Joao Cancelo is suspended for the first leg of the Champions League semifinal against Real Madrid.
“He felt a little bit tight," Guardiola explained at his post-match press conference.
“I didn’t speak to the doctor, I will speak to him in the morning. Even for the doctors he needs to rest a little bit to know exactly the feeling. John went out running and playing. That is a good sign.
“He did not make an action and fall down to the grass. He was playing but felt tight. We did not want to take a risk. We will see in the next days.”
“Hopefully it is not muscular because we have problems in that position with Kyle Walker (injury) and Joao (suspended) from playing against Madrid. We will see,” Guardiola added.
City, who lead Liverpool by a point, will face Watford this weekend as they aim to retain their Premier League crown.