Forfar have added Hearts goalkeeper Jack Hamilton and Dundee United midfielder Willie Robertson to their squad for the William Hill Scottish Cup clash with Ayr.

Both players have been given permission to play and Loons boss Dick Campbell also has Mick Dunlop available after suspension, while Mark McCulloch is available before his ban.

Goalkeeper Derek Soutar, Odmar Faeroe and Keith Gibson all remain sidelined through injury.

Campbell said: ``This is a big game for us and I wanted to freshen things up after losing to Brechin last week.

``Ayr will want a cup run every bit as much as we do so we need to play at our best and cut out the mistakes that have cost us dearly in a number of recent games.''

Ayr hope to include on-loan Rangers striker Kyle McAusland in their squad.

The Honest Men hope to conclude a deal to extend McAusland's stay at the club in time for him to play his part.

Another on-loan striker, Darrian MacKinnon, has already returned to parent club Hamilton, while Martyn Campbell and Michael McGowan are out injured and Ryan McStay is suspended.

But Anthony Marenghi could play for the first time in three months after overcoming a knee injury.

Roberts said: ``I'm sure Forfar will be viewing this game the same way as we are in that it is a tough tie, but it is a winnable one.

``They will look to dominate us and we need to be ready to stop that happening.''