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Former Rangers star Alex Rae believes that Dundee defender Luke Graham ticks all the boxes and should definitely be on the radar of not just the Gers, but also Hearts and Celtic.

The 22-year-old is a left-footed central defender who has been key to the Dundee team this season.

Playing in 31 of Dundee’s 32 Scottish Premiership games, Graham has also managed to score two goals from the heart of the defence.

His solid performances have not gone unnoticed and Graham has been linked with a move to Glasgow giants Rangers in the summer.

Rangers will need to bolster their defence as they are not expected to keep Derek Cornelius, Nasser Djiga is on loan and Emmanuel Fernandez is drawing interest.

Talk that Fernandez could be sold for as much as £35m has been doing the rounds, though journalist David Friel does not believe that he is going to fetch Rangers as much.

Graham could become a key option for Danny Rohl, slotting into to left side of the two-man central defence, and Rae believes he is now bullying opposing strikers.

Rae thinks that the penny has now dropped for Graham, who has knuckled...