A 29-year-old man was slashed across the face after four teenage goons tried rob him aboard a Bronx train early Wednesday, sources said.

The victim was on a southbound No. 6 train entering the East 149th Street station at around midnight when the four teens approached him, cops said.

The thugs attempted to rob him and when he resisted, one of the teens slashed him in the face before they all ran off, police said.

The victim was rushed to Lincoln Medical Center with a minor injury, cops said.

The man is the latest victim in spate of city knife attacks, which are up 24 percent from last year.