By Amir Mir

Aitor Karanka has vowed to send Callum Chambers back to Arsenal a better player after his season-long loan to Middlesbrough.

Defender Chambers moved to the Riverside during the summer transfer window and his new boss described the England international as a really important addition for the Premier League new boys.

“‘He has come here to help us,” said Karanka as quoted by the Daily Mail.  “I brought him here to help him because at the end of the season, the main thing is that we can stay in the Premier League and Calum can go back to Arsenal as a better player.

“Always the marks are at the end and for that reason, I think the marks will be good because he is a good player. He is coming to help us, to put pressure on different players and is a really, really good alternative for me.

“Calum ticks all the boxes – he can play in different positions, he’s a really good player, he’s a good kid, so he was really important for us at the last moment and for sure he is going to be important at this club.”

The 21-year-old moved to the Emirates from Southampton in 2014 for a fee of £16 million, but has struggled to find regular game time since his big-money move.

Chambers did feature for Arsene Wenger’s side during the 4-3 defeat against Liverpool on the opening day of the Premier League season.

However, Wenger has since added German international Shkodran Mustafi to the Gunner’s squad, and another new signing, Rob Holding, has already delivered some impressive performances at the heart of the Arsenal defence.

In other Arsenal transfer news, Manchester United chief compares Marcus Rashford to this Highbury legend.