Arsenal manager Mikel Arteta has heaped praise on Kai Havertz for his physical transformation during his recovery hamstring injury.
The German suffered a hamstring tear during the Gunners warm weather training camp in February which required surgery.
He was expected to miss the remainder of the season but returned to full training earlier this week - and could feature against Newcastle on Sunday.
And Arteta has been left impressed by how the former Chelsea forward has added muscle during his spell on the sidelines.
'There's been a transformation in his body,' the Spaniard said.