Liverpool face anxious wait on Henderson injury

Jurgen Klopp is hopeful Jordan Henderson's latest injury does not set the Liverpool midfielder back too long after ongoing heel problems.

Liverpool faces an anxious wait for news on captain Jordan Henderson after he was substituted as a precaution during the 1-0 Premier League win over Sunderland.

Henderson has been troubled by a persistent heel injury this season. Although the nature of his new injury is unclear, it would be a significant worry for Liverpool should the ailment be related to his previous issue.

The skipper played an hour of Wednesday's clash at the Stadium of Light before being replaced by Lucas Leiva, but Jurgen Klopp remains unsure over the extent of his midfielder's problem.

"I don't really know," Klopp said. "It's not perfect — otherwise we wouldn't have taken him off, but we had to. Now we have to wait. I cannot say exactly [what the injury is] at this moment. I hope it's not too serious."

Henderson has only featured seven times for Liverpool in the Premier League this season because of plantar fasciitis, a problem that he has been told is incurable by the club's medical team.