O'Leary's superb strike was his first of the season

Both sides lacked ambition in a nervous first half, but in the 60th minute a rash Tom Williams foul on Paul Warne resulted in a Luke Beckett penalty.

A poor clearance from Lee Grant then fell to O'Leary who nailed his 35-yard effort, his first goal of the season.

Oldham dominated the last 20, David Eyres and Beckett hitting the woodwork, Kevin McLeod going close for Swansea.

Oldham: Grant, Forbes, Haining, Branston, Hughes, Wellens (Butcher 65), Eyres, Edwards, Taylor (Chris Hall 57), Warne, Beckett.
Subs Not Used: Smith, Tierney, Owen.

Booked: Wellens.

Goals: Beckett 60 pen.

Swansea: Gueret, Ricketts, Austin, Tate, Williams, Britton (Forbes 56), Robinson (Tudur-Jones 74), O'Leary, McLeod, Knight (Trundle 56), Fallon.
Subs Not Used: Akinfenwa, MacDonald.

Goals: O'Leary 68.

Att: 5,179.

Ref: T Kettle (Berkshire).