INJURY threatens Gary Cross' final bid for a place in the Hong Kong Sevens squad as he battles to be fit for this weekend's Foster's National Sevens. Cross has spent the last 12 months recovering from two knee operations and now tackles his latest injury worry. He pulled up with hamstring trouble at the Singapore Sevens three weeks ago and knows these two days present his final chance to impress national coach George Simpkin, who is expected to announce his squad after the tournament. The First Division competition sees all six teams playing each other once in a round-robin contest. Cross' Police will be bolstered by the presence of forward Chris Meads, the son of former All Black Stan Meads, who is the brother of another famous New Zealander, Colin Meads. Valley will be without injured winger Ashley Billington, but Simpkin said that he may pick players who are not available for the National Sevens. Defending champions Club will be without injured centre Keith Gauntlet, Joe Hancock, and Marcus Carling. Some of the Kowloon players, including captain Craig Pain and scrum-half Tim Leach, have been hit by a 'flu bug, but are still expected to play.