By Alex Stevens

Leeds and Nottingham Forest are keeping close tabs on Tom Rogic ahead of possible summer bids, Football Insider sources understand.

The Celtic attacking midfielder is set to leave Parkhead at the end of the season after failing to agree a new contract with the Scottish giants.

Celtic manager Ronny Deila insisted on Monday that negotiations with the Australia international are “ongoing” but the impasse has alerted several leading clubs.

A source close to the situation has told Football Insider that Leeds and Forest are ready to go head to head to land Rogic after making approaches for him in the January window.

Rogic, who has just 15 months left on his Celtic contract, is becoming increasingly keen on the idea of playing in England.

The Scottish champions are likely to cash in on him in the summer, rather than risk losing him for nothing a year later.

Rogic has made 29 appearances this season, scoring seven goals, but hasn’t even been on the bench for the last two matches.

Deila remains hopeful that Rogic can be persuaded to stay. Speaking at his media briefing on Monday, the Celtic manager said: “Talks haven’t stopped at all, keeping on as normal.”