Hearts moved to within three points of second placed Aberdeen after a scintillating 6-0 win over Motherwell.
Three goals in six frantic first half minutes from Rossi, Sow and Reilly penalty had Hearts coasting to victory.
Motherwell improved in the second half and could have found a way back into the game when Scott McDonald and Wes Fletcher were presented with opportunities.
Well boss McGhee said: “We were nowhere near. It wasn’t us at our best, playing Hearts at our best, it was Hearts at their best paying us who were a poor imitation of what we were capable of. Hearts were excellent.”
However, after a brief lull in momentum Robbie Neilson’s men shifted through the gears to pile more misery on McGhee’s side with McGhee quickly hoping to forget his 900th game in his managerial career.
Callum Paterson made it four with a nice turn and swivel before Arnaud Djoum showed great invention to play in Juanma for the fifth.
Djoum then showed a moment of brilliance in the box to win himself a penalty which promptly smashed into the top corner to end the rout.
“We’re not getting carried away it was a great result for us but I would say probably last week was probably a bigger performance against Aberdeen in the first half because it was such a high profile game,” he said.
“It was pleasing that we never let up. We were 3-0 up after 22 minutes and the game is effectively dead but you’re always worried that they might get a goal before half time and that gives them something to chase in the second half.”