SWINDON Town could have to pay in excess of £500,000 for the services of James Collins and Troy Archibald-Henville, a tribunal panel has decided.

The Professional Football Compensation Committee have told Town to pay Shrewsbury an initial £140,000 for striker Collins while Exeter are due £200,000 up front from the Robins for centre-back Archibald Henville.

Add-ons in the Collins deal include incremental payments of £20,000 after the forward has made 15, 30, 45 and 60 appearances in red, while the Shrews are entitled to 20 per cent of any profit made by Swindon on the youngster in the future.

Archibald-Henville will also earn Exeter £20,000 after 15, 30, 45 and 60 appearances for Town and Swindon will have to pay the Grecians £40,000 if they reach the Championship with the defender on their payroll.

A 20 per cent sell-on clause has also been inserted into Archibald-Henville's terms while Town will have to fork out an additional £100,000 if they are promoted to the Premier League while the former Tottenham trainee is still on their books.