Lewes striker Matt Allen is expected to be ruled out for the rest of the season.
Allen, a £2,250 signing from Eastbourne Borough in November, suffered ankle ligament and tendon damage five minutes after coming on as a substitute in last week's 5-1 win at Chertsey.
It is a double blow for Rooks boss Jimmy Quinn who will also be without recent signing Dave Stevens for the rest of the campaign.
The former Crawley striker cannot train due to work commitments and has decided to take a break from football until next season.
Paul Kennett hopes to return for tomorrow's match at home to Corinthian Casuals but skipper Marc Cable is doubtful through illness and Graham Harper starts a two-match suspension.
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