Rangers want Dundee defender Luke Graham in the summer | OneFootball

Rangers want Dundee defender Luke Graham and have stepped up their interest to bring him to the Ibrox club, according to the Scottish Sun.

Rangers manager Danny Rohl wants to strengthen at the back to mount a stronger challenge for the Scottish Premiership title next term and the Light Blues are keen on the 22-year-old.

The Bears’ technical director Dan Purdy was at Dens Park on Saturday to watch Graham in action and more scouting trips and reports are expected ahead of the summer transfer window.

However, Rangers are not the only ones keen on the defender, with Celtic and English clubs also keen.

The Light Blues could lose John Souttar at the end of the season as he has yet to pen a new contract.

Nasser Djiga is expected to return to Wolverhampton Wanderers after his loan spell ends, and Rangers are already preparing for life without the duo.

Graham will not come cheap as Dundee rejected a £1 million bid for him from Portsmouth last month.

The Light Blues will be ready to outbid them and Celtic as they look to lure him to Ibrox ahead of next season.

Rangers are two points behind league leaders Hearts after 27 games and are a point ahead of the Hoops in a title race which promises to be intriguing.

Pipping Hearts and Celtic to it will be huge for the Gers, and it could help them land Graham and other top players in the summer due to Champions League football and its money.

They were keen on him during the winter transfer window and are likely to go big for him as he keeps impressing.

The Scotland youth international has established himself as a key player for the Dark Blues this term after spending a couple of seasons out on loan.

The Rangers target has played 30 games across all competitions this term after featuring just five times last season and spending most of it on loan in the Scottish Championship with Falkirk.