Celtic sign Stuart Armstrong, Gary Mackay-Steven

Celtic have announced that they have signed Dundee United pair Stuart Armstrong and Gary Mackay-Steven on long-term contracts.

The Bhoys sealed the moves shortly before Scotland's 12am deadline, with the deals thought to total more than £2m.

The 22-year-old Armstrong arrives at Parkhead on a three-and-a-half-year deal, while Mackay-Steven, 24, has signed on until 2019.

Armstrong told BBC Sport: "I'm delighted to be here and to have signed on at such a massive club."

The duo will be ineligible to make their debuts in Saturday's Scottish Cup clash with Dundee.