The former Citizens defender has been impressed by how the two men have linked up in Pep Guardiola's starting XI this season
Ruben Dias and John Stones are forging a "formidable" partnership according to Joleon Lescott, who says it is clear that the Manchester City duo have each other's backs.
City currently boast the best defensive record in the Premier League, having only shipped 13 goals in their opening 15 fixtures.
Pep Guardiola's side surrendered a clean sheet late on during their comfortable win over Chelsea on Sunday, but they still have two fewer in the goals against column than any other side in the division at present.