Atletico Madrid are keeping a watchful eye on both both Marcos Alonso and Sergi Roberto this summer.

The La Liga giants are hoping to secure new full-backs in the summer for manager Diego Simeone.

According to ESPN, 31-year-old Alonso and 30-year-old Roberto are two intriguing options for Atleti.

Alonso is someone Simeone has wanted for a while, and he only has a year remaining on his Chelsea contract.

Meanwhile, Roberto is no longer first choice at Barcelona, and may want to move on in the summer.