Sthenelus was the driver of Diomedes ' chariot and probably his closest friend .
Both Sthenelus and Euryalus ( former Epigoni ) fought under his command with their armies .
Sthenelus was the Sthenelus of Diomedes ' chariot and probably his closest friend .
Both Sthenelus and Euryalus ( former Epigoni ) fought under his command with their armies .