Manchester United are keen on Brian Brobbey but the Ajax forward has been told that Memphis Depay’s Premier League struggles should be a warning to him as he weighs up his future at the Eredivisie giants. For every Ruud van Nistelrooy, prolific during his own spell at Old Trafford, there are countless Memphis Depays. For every Lisandro Martinez, multiple Antonys. Reports suggesting that Manchester United could renew their interest in Brian Brobbey – who snubbed Erik ten Hag two years ago in favour of re-joining Ajax from RB Leipzig – have certainly divided fans and pundits alike, with Wim Kief…