Arsenal forward Kai Havertz could miss the rest of the season after tearing his hamstring in training, British media reported on Wednesday, a blow that could leave the club's attack threadbare following a number of injuries.

Trossard led the line away to Girona in the Champions League when Havertz was rested last month and played centrally just off the German during a run of games last autumn, when Arsenal shifted to a 4-2-2-2 system to accommodate Martin Odegaard’s absence from midfield.

Arsenal suffer another devastating injury blow as Kai Havertz out for the season - Havertz adds to Arsenal’s lack of fit forwards after suffering a torn hamstring