Gunning, 28, joins after being released by SkyBet League Two side Forest Green Rovers at the end of his contract in May with his last appearance coming against Tranmere Rovers in the play-off semi-final first leg where he was sent-off in the first half.

The Dublin-born centre-back played 67 times during an 18-month spell with Rovers, scoring twice.

After starting out with Crumlin United in his homeland, Gunning moved to England with Blackburn Rovers in February 2006.

He had loan spells with Tranmere Rovers, Rotherham United, Bury and Motherwell before being released by Rovers without making a senior appearance at the end of the 2010/11 season.

He signed for Dundee United in July 2011 and went on to make 83 appearances and was namedd on the PFA Scotland team of the year for 2011/12.

He left for Birmingham City in 2014 and had a brief spell with Oldham Athletic before re-joining Dundee United in October 2015.

Spells with Greenock Morton, Grimsby Town and Port Vale followed before he joined Forest Green.

Robson joins `Ricay from National League side Barnet.

He joined the Bees from Dagenham & Redbridge, where he spent two years, in the summer of 2018.

He had signed for the Daggers following several impressive seasons at Bognor Regis Town where he made 159 starts for the Rocks, scoring 17 goals.

A popular figure at Nyewood Lane, Robson picked up the players’, supporters’ and sponsors’ player of the year awards for the 2013/14 season.

Hailing from Hampshire, Robson's career began at Southampton as a schoolboy before his local club Havant & Waterlooville. He would then move to Australia and play for Sorrento before returning to England and joining Bognor before making the switch to Dagenham.