All the information ahead of our trip to Priestfield on Boxing Day
The Gills have picked up in the last couple of games under new manager Peter Taylor with a 2-2 draw at home to Peterborough before travelling to Tranmere on Friday and winning 2-1. They find themselves in 14th position and will have aspirations of looking up the table towards the play-offs in 2014 rather than over their shoulder at the drop zone where at times earlier in the season it looked like they might be destined.
Danny Kedwell remains their top scorer with 10 goals but will miss the match with a hernia problem but Adebayo Akinfenwa should be fit after cramp problems. Midfielders Chris Whelpdale (leg) and Danny Hollands (knee) continue to be monitored.
Lloyd James is suspended for the O's after picking up his fifth yellow card of the season and David Mooney remains suspended, though Elliot Omozusi returns after serving a one match ban against Crawley.
Orient are firm favourites in the betting with Sky Bet priced at 10/11 with the home side at 3/1 and a draw at 5/2. Register now at www.skybet.com/orient and get over £30 in free bets.
In his last trip to Gillingham, Shaun Batt bagged a hat-trick and he is priced at 40/1 to repeat that feat.
Seniors (65+) £19.00
Under 18 £12.00
Under 12 £7.00