Everton have yet to decide if Lewis Dobbin will need surgery on the injury that could spell the end of his season.
The 18-year-old striker has suffered knee damage after coming off worse in a challenge during training at Finch Farm on Saturday.
Dobbin fears the injury will keep him sidelined for up to four months.
But a decision on whether he needs to go under the knife has yet to be taken by Everton's medical chiefs.
The Stoke-born striker is part of David Unsworth's under-23s squad having made his breakthrough at that level last season.
But the teenager has played only for the u-18s this term, scoring twice and laying on two assists in seven league matches.
Dobbin, however, expects his season to be over after sustaining the knee injury in training.
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He signed his first professional deal with Everton last January and is contracted to the club until June 2022.
