The pair were part of the Leeds' side that took the Premiership and Champions League by storm a few seasons ago with Viduka bagging 72 goals at Elland Road before his Ã‚Â£4.5m switch to Teeside.
He's been in fine form of late for Middlesbrough with a couple of crackers against West Brom and Crystal Palace in the Carling Cup taking his tally to seven in all competitions this season.
He's strong, has great feet and holds the ball up well, a great strength of his
"On his day Viduka is one of the best strikers in the Premiership," said goalkeeper Robbo, who will be aiming to keep him out and end a sequence of seven games without a clean sheet.
"He's also capable of scoring a goal out of absolutely nothing, even when he's not having one of his better days.
"He's scored some great goals and the one with the outside of his foot against West Brom is what he's all about."
Paul Robinson has described his former team-mate and Middlesbrough striker Mark Viduka as 'unplayable' on his day.