Marc-Antoine Fortune's second-half brace against 10-man St Johnstone at McDiarmid Park helped take rampant Celtic to within seven points of Rangers with a 4-1 win.
Liam Craig gave Saints the lead from the spot after Glenn Loovens had tugged Steven Milne inside the box but the game turned in the visitors' favour after Graham Gartland was sent off seconds in the second half for a last man foul on Fortune.
The former Nancy striker equalised with a wonderful angled drive in the 64th minute and notched a second from close range, either side of a Georgios Samaras drive, with substitute Paddy McCourt sealing the win with a late solo goal.
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