Everton striker Dominic Calvert-Lewin is set to miss Saturday's Premier League clash with Chelsea.
Calvert-Lewin's 2022-23 campaign has been hampered by injury issues, which have restricted him to just 12 competitive appearances.
The 26-year-old has not appeared for Everton since featuring in the club's 1-0 home victory on February 4, which represented Sean Dyche's first game in charge.
A hamstring injury has kept Calvert-Lewin out of the last six games, and he is set to miss out on Saturday after Dyche revealed that the forward "has felt something" which prevented him from training on Thursday.
"He has felt something we have got to be careful with that's all, and he has to be careful with,' Dyche told reporters at his pre-match press conference.
"He wasn't overly in my thinking for the Chelsea game regardless of anything else because [then] the international break comes and we can hopefully use that more wisely.
"We are trying to get him as strong as he was two years ago and back to that statistical level as well in terms of how we think and how he feels."
When questioned about a possible return date for Calvert-Lewin, the Everton boss was reluctant to offer a timeframe for the striker's recovery.
Dyche added: "We'll see. There's nothing other than me wanting to get him out there training every day and feel good about that. That's the best start point and take it from there."
Everton are also without the services of Andros Townsend, who is still recovering from an anterior cruciate ligament injury.
Nathan Patterson, who has been sidelined since early January, is also a doubt as he continues to build up his fitness.
James Garner was an unused substitute last weekend after returning from a spell on the sidelines, and he is expected to be on the bench once again.
Having failed to win a Premier League away game at Stamford Bridge since a 1-0 victory in November 1994, Everton are looking to claim their first away league victory over Chelsea in 29 years.
The Toffees have also struggled on their travels this season, winning just one of their 13 away league games, which took place against Southampton in October. body check tags ::