Exeter's England Saxons prop Alec Hepburn could be out for 10 months after injuring his knee ligaments in training.
Exeter Rugby Union
England winger Jack Nowell has the ability to be selected for the British and Irish Lions, says Exeter head coach Rob Baxter.
Exeter Chiefs scrum-half Will Chudley is out for two months after suffering a chest injury.
Exeter score five tries as they end Ulster's hopes of Champions Cup quarter-final qualification by winning 31-19 at Sandy Park.
Audio & Video
Near the halfway stage of the 2016-17 season, BBC Sport's Jeremy Guscott assesses the sides vying to be Premiership champions.
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