West Brom goal ace Callum Robinson is on a collision course with his manager over his no-vax stance.The 26-year-old has been at the centre of a storm since revealing he’s opted not to get vaccinated against Covid-19 despite twice testing positive.Now West Brom boss Valerien Ismael has revealed it could become an issue for the striker who is a rich vein of form.Robinson goes into Friday's big local derby with Birmingham having scored five goals for Republic of Ireland in the international break.But Ismael admitted the striker needed to be mindful that his stance could have consequences if it threatens to destabilise training sessions at the club.Ismael said: “We cannot force anybody - that is the reality.