The reason Brentford rejected an offer from Man Utd for one of their players is still unclear because I heard Man Utd has increased the offer value to Brentford but still got a rejection from the previous offer, maybe Brentford wants a much higher price but I think there is another reason, there is a possibility that Mbeumo does not want to play at Old Trafford because Tottenham also invited to work together and there is Frank the coach who brought Mbeumo to where he is now besides if he plays with Spurs he will appear in the UCL.