The Gills have won the last 2 ties between the sides after Leyton Orient won the previous 3.
The Gills haven't won at Orient in the league since 1996, a 1-0 win. Apart from an FA Cup win, the other 4 visits saw 2 defeats follow 2 draws.
Leyton Orient have lost 22 of their last 49 league games having previously only lost 14 from 67!
After 2 wins in 6, Orient have won their last 2 League 1 games. On their 2 previous occasions, back to back wins were each followed by defeats.
Leyton Orient have lost 11 games at home, 4 more than the amount they have lost away.
Orient are unbeaten in 3 at home (winning 2) and have conceded just 1 goal ending a run of 5 defeats in 6 (conceding 11 in the process).
Leyton Orient had the fewest number of blank sheets in the league last season (4) but have had 14 so far this season, 4 more than the Gills.
Last season Dean Cox, Kevin Lisbie and David Mooney scored 56 goals between them but this season have managed 17. Chris Dagnell is top scorer with 12.
3:00
Kick-Off
3:30
Ehmer concedes a penalty.
3:31
GOAL! Leyton Orient 1-0 Gillingham (pen).
Leyton Orient had previously only scored first in a quarter of their 20 league games at home but won 4 of them.
3:35
GOAL! Leyton Orient 1-1 Gillingham: McGlashan.
Jermaine McGlashan scores his 6th goal for the club, his 4th in an away game. 5 have come in his last 16 games, the same amount as Cody McDonald!
3:43
GOAL! Leyton Orient 1-2 Gillingham: McDonald.
Cody McDonald scores his 63rd Gills goal and his 17th with his head.
3:48
Half-time: 1-2
3:52
Leyton Orient have been behind at the break at home in the league in 10 of their 21 games before today, more than any other League 1 side.
3:59
Bradley Dack's assist was his 11th this season (and his 17th in his Gills career) making him the top goals provider for the Gills. Goals and assists combined both he and Cody currently have 20 each.
4:04
The second half kicks off.
4:13
Penalty to Gills won by Luke Norris.
4:14
GOAL! Leyton Orient 1-3 Gillingham: McDonald (pen).
Cody McDonald scores his 4th brace of the season. He has 4 of the Gills 8 this season.
4:25
GOAL! Leyton Orient 2-3 Gillingham.
Former-Gill Darius Henderson scores for Orient.
4:31
Bradley Dack hits the outside of the post.
4:41
Leyton Orient hit the post!
4:42
GOAL! Leyton Orient 3-3 Gillingham.
Former-Gills loanee Josh Wright scores.
4:44
Orient are unbeaten in 3 at home (winning 2) and previously conceded just 1 goal ending a run of 5 losses in 6 (conceding 11 in the process).
4:53
Full-time: 3-3
Ref: Mark Haywood
Attendance: 6,394 (1,191)