Arsenal are set to discover the full extent of the thigh injury suffered by Gabriel while on international duty amid concerns he faces several weeks out. The centre-back limped off in visible discomfort during Brazil's friendly against Senegal at Emirates Stadium over the weekend and has returned to Arsenal for treatment. The early fears are that the 27-year-old will miss a minimum of four weeks, with sources indicating the defender's absence could stretch to January. The exact severity of the