According to reporter Ben Jacobs, B's refusal to Riyadh Crescent will not affect Manchester United's attempt to introduce Mbemo.
Ben Jacobs wrote on social media: "Feed B rejects Riyadh Crescent, which will not affect Manchester United's attempt to introduce Brentford's Mbemo. Although Riyadh Crescent had in-depth negotiations before Ferry refused, Manchester United never made contact or offer, and their early transfer operations had nothing to do with the future of Ferry."
"Of course, considering the need to strengthen multiple key positions, it is important that United still needs to leave the team during the summer window."