Celtic, Burnley have Stuart Armstrong bids rejected by Dundee United?

Dundee United have reportedly rejected bids from Burnley and Celtic for midfielder Stuart Armstrong.

The 22-year-old, who joined the Terrors from Inverness Caledonian Thistle in 2009, has been heavily linked with a move away from Tannadice Park this month following a number of impressive performances.

Celtic are among the sides who are said to have been tracking the former Scotland Under-21s international, while Burnley also appear to be interested in the player's services.

However, Sky Sports News claims that both sides have been knocked back in their respective approaches for Armstrong, who has entered the final 18 months of his Dundee contract.