Casemiro’s future at Manchester United has been cast into doubt after a disappointing start to the season. When Manchester United signed Casemiro for £70m in 2022 it seemed like a risk worth taking. The Red Devils were in need of a defensive midfielder and the Brazilian was the best in the business. Casemiro enjoyed a superb debut season but the drop in his performance levels over the last two seasons has been alarming and at 32 years old it doesn’t look as though they will pick back up again. United wanted to sell Casemiro this summer and there was interest from the Saudi Pro League, but a de…