Luton Town toppled Oxford United from the head of the Blue Square Premier table with a stunning two-goal injury- time finale at Kenilworth Road.Matt Green's deflected close-range strike looked to have kept Oxford clear of nearest rivals Stevenage. [LNB]But George Pilkington headed home three minutes into injury time to level. [LNB]And Keith Keane's inswinging corner then curled straight in to win it for Luton, although Keane was sent off for his celebration - his second caution. [LNB]The win means that the Hatters' neighbours Stevenage Borough, 3-1 winners at home to Mansfield, now go top again, three points clear of stunned Oxford. [LNB]Luton's victory lifts them into the Blue Square Premier play-off zone - 11 points behind Stevenage. [LNB]U's forward Alfie Potter had the first chance of an entertaining first half, his 18-yard drive being saved by Mark Tyler, who also had to scramble to keep out Sam Deering's 35-yard effort. [LNB]At the other end Tom Craddock powered a close-range header straight at Ryan Clarke, who also saved long-distance efforts from Asa Hall and Craddock. [LNB]The Hatters lost Liam Hatch to injury on the hour, almost conceding a goal shortly afterwards when a Damian Batt free-kick found Jack Midson but his header was caught by Tyler. [LNB]But Oxford did break the deadlock when substitute Matthew Green, who had only been on the pitch for two minutes, got on the end of Simon Clist's knock-down. [LNB]The home side piled forward in search of a late equaliser, Claude Gnakpa, Adam Newton and Rossi Jarvis all going close. [LNB]And their persistence was rewarded at the death when Keane's corner was headed home by Pilkington. [LNB]But the Hatters were not finished, Keane sensationally scoring straight from their final corner, only to be unfortunately sent off for his over-zealous celebration. [LNB][LNB]Luton Town: Tyler, Keane, Kovacs, G Pilkington, Murray, Newton, Nicholls (Gnakpa 46), Hall (Nelthorpe 77), Jarvis, Craddock, Hatch (Barnes-Homer 59). Subs Not Used: Gore, Howells. [LNB]Sent Off: Keane (90). [LNB]Booked: Keane, Kovacs. [LNB]Goals: G Pilkington 93, Keane 96. [LNB]Oxford United: Clarke, Batt, Day, Wright, Tonkin, Potter (Chapman 78), Hargreaves, Bulman, Clist, Deering (M Green 72), Midson (F Green 88). Subs Not Used: Turley, Creighton. [LNB]Booked: Potter. [LNB]Goals: M Green 74. [LNB]Attendance: 8,860. [LNB]Referee: Robert Madley (West Yorkshire).