It was his third league try of the season and came six days after he went over the whitewash four times against Femi-CZ VEA Rovigo in the Amlin Challenge Cup.
Lemi is up against Tom Varndell, Tom Williams, Alex Goode and Freddie Burns and needs your votes.
Simply visit the Premiership Rugby Facebook page to cast your vote.
Shortlist for Aviva Premiership try of the week:
David Lemi - Worcester Warriors v Sale Sharks
Tom Varndell (first try) - London Wasps v London Welsh
Tom Williams - Harlequins v London Irish
Alex Goode - Saracens v Northampton Saints
Freddie Burns - Gloucester v Leicester Tigers