Tottenham chairman Daniel Levy has been taken aback by the upbeat approach of Jose Mourinho this preseason.

The Daily Mail says Mourinho is a man invigorated, according to Tottenham insiders.

The Spurs boss is said to have even taken Levy aback with his enthusiasm.

"He was on good form last season but he's come back on another level," said one source.

"He is throwing himself into training sessions and those who have known him for a while say it is like seeing the Jose from the Porto days back again."