Sunderland striker Ross Stewart is being monitored by Middlesbrough ahead of the January transfer window, according to reports in the last 48 hours.

The Lowdown: Stewart's future up in the air

The Scotland international led his side to promotion last term after netting the second goal in the League One play-off final against Wycombe, and he has been a revelation in the Championship ever since.

However, the 26-year-old’s contract is set to expire at the end of the campaign, and with recent reports suggesting that the club are open to selling him in the winter should he not sign a new deal, he is now being linked with an exit from the Stadium of Light.

The Latest: Middlesbrough eyeing Stewart

According to the Daily Record late on Monday night, Stewart has emerged as a ‘target’ for northeast rivals Middlesbrough ahead of the transfer window opening in the New Year.

Boro manager Michael Carrick is believed to have ‘identified’ the Black Cats forward as a player who can help push his team higher in the table after catching the ‘attention’ of clubs following his displays last season.

The Riverside Stadium boss is ‘keen to sign’ the Sunderland talisman, and whilst Rangers were credited with an interest over the summer, that is ‘unlikely’ to be renewed.

The Verdict: Time to cash in

Stewart has been described as Sunderland’s ‘threat’ by Josh Bunting, but despite his incredible impact in the final third, now would be the right time to cash in on the 26-year-old.

The attacker has racked up eight goal contributions in just seven appearances this season and is averaging 3.9 shots per game (WhoScored), form which will allow the Wearside hierarchy to increase his valuation .

The Black Cats have already made an enquiry to sign Aston Villa striker Cameron Archer on loan, so he could be an ideal temporary replacement should Stewart depart.