Arsenal are interested in making a move for Eintracht Frankfurt defender Evan Ndicka, according to reports.
Ndicka, 23, was a key man for the German side as they won the Europa League last season.
The centre-back has already featured in 16 games so far this campaign, including all four of Frankfurt's Champions League ties.
According to the Evening Standard, Mikel Arteta is keen to sign a left-sided centre-back to compete with first-choice defender Gabriel Magalhaes.
The report states that the Gunners targeted Lisandro Martinez in the summer, before the Argentinian joined Manchester United, while they were also keen on Calvin Bassey who moved to Ajax from Rangers.