Mansfield 0 Middlesbrough 2: Middlesbrough claimed their place in the FA Cup fifth round draw with a hard-fought victory over League Two Mansfield.
The Premier League side took a 17th-minute lead through Dong-Gook Lee's second goal for the club, but had to wait until three minutes from time for Jake Buxton's own goal to seal the win.
Mansfield had their chances with Michael Boulding forcing two excellent first-half saves from Mark Schwarzer as Boro were made to fight to the whistle.
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