Leeds United striker Pierre-Michel Lasogga is been backed to improve.
The 25-year-old has looked like one of Leeds' best signings of the summer after scoring three goals in six games since joining on loan from Hamburg.
At the moment he does not look as prolific as Chris Wood - who joined Burnley in the summer - but he certainly has the potential to be a talismanic figure for United.
And Roofe says that the German hitman will go from strength to strength during his spell at Elland Road this season.
Asked about the marksman, Roofe said to a press conference via TV Yorkshire: "Yeah [he's been great] and he's only going to get better."
It remains to be seen who Thomas Christiansen will select to lead the line on Saturday against Reading.
Lasogga missed a good opportunity at 2-0 down at Sheffield Wednesday last time out and although Roofe was ineffective in that role against Cardiff, the former Oxford United man, a £3 million signing under Garry Monk, might fancy his chances of starting.