Viktor Gyokeres must improve his fitness to be a success at Arsenal, according to a former Gunners star.
Stefan Schwarz says the forward's 'heavy' build could be holding him back from achieving the goalscoring form he did at Sporting Lisbon.
But his comments are unlikely to go down well with 6ft 2in Gyokeres, who previously hit back at critics calling him 'fat' at Sporting and proved them wrong in style.
Gyokeres has made a reasonable start to life in north London, scoring six goals in 14 appearances, and has been hailed for his 'phenomenal' work ethic by Mikel Arteta.