Manchester United are preparing a revised bid for Brentford forward Bryan Mbeumo after their opening offer of £55million was rejected.
Brentford are pushing for more than £60m and United's opening bid was £45m plus £10m in bonuses.
Mbeumo is seen as a key target for United, who are looking to improve their lacklustre squad after a dreadful campaign.
The Red Devils scored just 44 goals in the Premier League, the second lowest of any non-relegated side.
The 25-year-old, who sees his contract expire next year - although Brentford have an option to extend it by 12 months, could become United's second signing of the summer behind the £62.