Swindon boss Danny Wilson has signed four new players in time to face Walsall on Tuesday night.
Doncaster defender Gordon Greer, 28, has been signed on a one-month loan having not featured for Rovers this season.
He is joined by Reading winger Hal Robson Kanu, 19, who joins on another month agreement having played 15 times for Southend during two loan spells at Southend in 2008.
Two foreign trialists have been signed until the end of season, them being Hamdi Razak and Jean-Christophe Lescinel.
French striker Razak scored a hat-trick against Swansea reserves, while defender Lescinel has played international football for Haiti.
