Barcelona are reportedly set to make offers for Premier League duo Antonio Rudiger and Shkodran Mustafi if they fail in their attempt to sign Manchester City defender Eric Garcia in the January transfer window.
Ronald Koeman is short of options in the centre of defence as Gerard Pique is likely to be sidelined for up to four months after picking up a knee ligament injury in November.
Mundo Deportivo reports that Garcia, 19, remains Barcelona's primary target but the La Liga giants have lined up the out-of-favour Rudiger and Mustafi as possible alternatives.
The Catalan club failed to agree a deal with Manchester City in the summer as they were unable to raise the reported £9m fee that Pep Guardiola's side were demanding.
Garcia, who has made five appearances for City this campaign, is out of contract at the Etihad at the end of the 2020-21 campaign, meaning he would be available to leave the club on a free transfer.
Rudiger has been heavily linked with a move away from Chelsea since the summer, while Mustafi has fallen down the pecking order under Arsenal manager Mikel Arteta.