Now that Newcastle United have won promotion to the Premier League, they will start to think about possible summer transfer targets.

After their disappointing relegation from the Premier League last season, Newcastle will not want to repeat that.

Therefore, Rafa Benitez will already be busy at work, devising a wishlist full of transfer targets as he aims to bolster his squad ahead of the Premier League campaign.

The Chronicle is reporting that one position Benitez will look to strengthen is left back.

Paul Dummett has made the left back slot his own this season but he has previously been exposed against higher quality wingers in the Premier League.

With Massadio Haidara set for the axe and Achraf Lazaar clearly not rated by Benitez, Newcastle United will look to bring in another left sided full back to compete with Dummett next term.

Here are 3 left backs who should be on Benitez's radar in the summer.

Kieran Gibbs

Kieran Gibbs is struggling to get a game for Arsenal due to Nacho Monreal's good form.

The sporadic England international is clearly a Premier League quality left back and would get plenty of first team game time at Newcastle.

With Arsenal reportedly buying Sead Kolasinac this summer, Kieran Gibbs will surely be shown the door with Newcastle an ideal destination for the 27-year-old.

George Friend

Middlesbrough look set to go down this season despite picking up a vital win against Sunderland in midweek.

If Boro do drop, George Friend might be tempted to leave and stay in the Premier League.

The 29-year-old has regularly proven his quality for Middlesbrough and would add genuine competition for Dummett.

Charlie Taylor

Another option that Newcastle could explore is Leeds left back Charlie Taylor.

The 23-year-old is out of contract at the end of the season and he clearly doesn't want to stay with Leeds if they don't manage to go up.

Newcastle could snap up the highly rated attack-minded left back for a mere compensation fee if they act quickly this summer.