All the news ahead of tomorrow's game from injury news to travel and tickets
Form: The Millers are without a win in their last three League 1 games though have a good record away from home this season having only been defeated once on their travels. Since making the jump from League 2, Steve Evans side have looked relatively comfortable in their new surroundings and currently sit in ninth having taken 20 points from their first 13 games.
Injuries: Kevin Lisbie is still a doubt for the O’s having missed the game on Tuesday against Coventry with a knock taken at Tranmere Rovers, whilst Mathieu Baudry is also now a doubt for Russell Slade after sustaining an injury in the dying seconds on Tuesday.
For the visitors, Lee Frecklington and Michael O’Connor return from suspension whilst Kari Arnason will face a late fitness test.
One To Watch: Lee Frecklington is a goalscoring midfielder in fine form this campaign having already bagged five goals.
The Bookies: Sky Bet have the O's as firm favourite at 10/11 with a draw at 12/5 and Rotherham at 3/1. Fancy Dean Cox to score again? He’s 10/1 for the first goal. You can also win a trip to the Orient training ground by registering an account through the following link and having a bet: www.skybet.com/orient
Tickets: Tickets are available and the Club would advise fans to purchase them in advance online using the 'Tickets' tab at the top.
With our attendances growing in recent weeks, we would advise fans to arrive early to avoid queues and remind them that tickets bought in advance are cheaper and cut queuing times at the collections kiosk.
Normal home ticket prices apply which can be found here and cash turnstiles for home fans will be in operation in the South and East Stand.
If you wish to purchase a ticket for the West or North Stand then you need to buy them before the game from the West Stand Ticket Office on Oliver Road.
Tickets for forthcoming away games will be on-sale up until 2pm and after the game from the ticket office.
If you have pre-ordered a ticket and are collecting it then you can do so from the ticket kiosk which is adjacent to gate 8 of the West Stand, near the Ticket Office on Oliver Road.
If you have a Gallery ticket then it’ll be available for collection at Reception in the West Stand.
If you have a hospitality dining package, then you should also enter through Reception from 12:30pm
Club Shop: The Superstore will be open before the game and for 30 minutes after the final whistle.
Getting Here: The central line has engineering works this weekend meaning Leyton Station is not open. Leyton Midland overground station is approximately a 15 minute walk for the ground whilst Leyton is a served by a raft of local buses. The club postcode is E10 5NF for satnav users.
Programme: Tomorrow's programme features a revealing interview with Johnny Gorman plus John Mackie returns with his column. It will be available for purchase upon entrance to the ground and leftover copies will be for sale in the shop after the game.
Match Sponsors: First Class Facilities Management
Keep An Eye Out For: The Royal British Legion will be collecting around the ground for the Poppy Appeal.