Agombar Jnr, pictured, has been at Swindon since July 2013 when he signed a two year deal but, as yet, hasn't started for their senior side. He left Grays in 2012 to join Macclesfield.
He featured for Hereford United a couple of times earlier this season but took a knock and was then side-lined for several weeks.
Swindon are reported to be paying Agombar's wages whilst he is at Grays.
Swindon are reported to be paying Agombar's wages whilst he is at Grays.