The former Liverpool boss has stated that Emmanuel Adebayor has not consistently lived up to his potential.
Tottenham slumped to a 1-0 defeat to Arsenal on Sunday, with the White Hart Lane side struggling to make the most of periods of pressure and unable to break the deadlock.
Emmanuel Adebayor led the line for Spurs once more and although he looked the most likely to get a goal for the hosts, was unable to net against his former employers.
The Togolese forward has been brought back into the fray by Tim Sherwood after falling out of favour with Andre Villas-Boas.
Graeme Souness has been vocal on Adebayor’s abilities and stated over the weekend that the African’s desire was questionable.
“When he’s in the mood, you could say he is unplayable because you can’t get the ball off him,” the Scot told The Sunday Times.
“You can’t come through him or round him to get it.
“He can hold it up, he has great technique and an eye for goal. He should be talked about as one of the best strikers around because he has the quality.”
Adebayor is Tottenham’s top goalscorer this season, netting eight goals in 14 starts for the North Londoners this season.
His form comes as something of a revival after an under-par campaign in 2012-13.