Brian Brobbey has been playing more efficiently since his transfer to Sunderland, claims his performance coach Patrick Woerst. This is evident in his recent hattrick against Manchester City. Woerst attributes Brobbey's improvement to a change in his playing style, rather than an increase in fitness or strength.
Brobbey used to receive the ball from a standstill in his Ajax period, which often led to him being caught in duels and expending a lot of energy. However, since joining Sunderland, he has been receiving the ball in more dynamic situations, resulting in fewer duels and a more efficient use of energy. Woerst notes that Brobbey is 'veel efficiënter' gone playing since his transfer to Sunderland.