Gloucester sweat on star trio

Gloucester are sweating on a trio of star performers ahead of Sunday's clash with Wasps at Kingsholm.Both number eights Ben Morgan and Gareth Evans missed the West Country derby defeat to Bath due to injury and face a race against time to prove their fitness.The duo have both taken a limited part in training this week and it is hoped that the extra rest over Christmas will be sufficient to allow them to return to action.Scrum anchor John Afoa is also struggling with the leg injury he suffered..., Gloucester sweat on star trio