Match ends, Oldham Athletic 1, Leyton Orient 0.
Mike Jones scored the only goal as Oldham Athletic beat League One rivals Leyton Orient to reach the second round of the FA Cup.
Oldham keeper Paul Rachubka denied Dean Cox before Jones put the hosts ahead with a curling 20-yard free-kick.
Chris Dagnall and Shaun Batt wasted chances for the visitors, while Orient captain Nathan Clarke had a second-half goal disallowed for pushing.
Danny Philliskirk almost added a second for Oldham, hitting the post late on.
Oldham manager Lee Johnson told BBC Radio Manchester:
"Make no mistake, that was a really, really tough game and I'm just delighted to be in the hat.
"It wasn't vintage and it was difficult but that's what we're going to get now - we've got this home record, what do you expect?
"Teams are going to come here, sit behind the ball, try and press and squeeze us and deny us place. Maybe last year we would have last that game 2-1 or 3-1 but such is the character of the boys that we've come out with a win and we're in the hat."
- 16WilsonBooked at 72mins
- 6KellyBooked at 48mins
- 10PhilliskirkBooked at 45mins
- 9PoleonSubstituted forDaytonat 74'minutes
- 6BaudryBooked at 42minsSubstituted forSawyerat 82'minutes
- 14BattBooked at 35minsSubstituted forBartleyat 57'minutes
- Seb Stockbridge
- Shots on Target
Second Half ends, Oldham Athletic 1, Leyton Orient 0.
Danny Philliskirk (Oldham Athletic) hits the right post with a right footed shot from outside the box.
Attempt missed. Bradley Pritchard (Leyton Orient) right footed shot from the centre of the box is close, but misses to the right.
Substitution, Leyton Orient. Gary Sawyer replaces Mathieu Baudry.
Substitution, Oldham Athletic. James Dayton replaces Dominic Poleon.
James Wilson (Oldham Athletic) wins a free kick in the attacking half.
Foul by Nathan Clarke (Leyton Orient).
Corner, Leyton Orient. Conceded by James Wilson.
Corner, Leyton Orient. Conceded by Joseph Mills.
James Wilson (Oldham Athletic) is shown the yellow card.
Foul by James Wilson (Oldham Athletic).
Josh Wright (Leyton Orient) wins a free kick in the defensive half.
Corner, Oldham Athletic. Conceded by Scott Cuthbert.
Corner, Leyton Orient. Conceded by Brian Wilson.
Foul by Jonathan Forte (Oldham Athletic).
Shane Lowry (Leyton Orient) wins a free kick on the right wing.
Substitution, Leyton Orient. Marvyn Bartley replaces Shaun Batt.
Carl Winchester (Oldham Athletic) wins a free kick in the defensive half.
Foul by Shane Lowry (Leyton Orient).