The incident happened early Friday morning, as the victim was returning to his home in the vicinity of Croes Avenue and Watson Avenue in the Soundview section.
That's when authorities two men attacked 35-year-old Eddie Diaz, knocking him to the ground before punching and slashing him with an unknown sharp object.
They got away with his wallet, which had just $10 inside, before fleeing northbound on Croes Avenue on bicycles.
Attackers beat, rob man in the Bronx
Diaz suffered lacerations to his face and was taken to Jacobi Hospital in serious but stable condition.
Both suspects are described as males in their mid 30s to early 40s, about 6-foot-1 with slim builds, last seen wearing dark-colored clothing.
Anyone with information is asked to call the NYPD's Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782). The public can also submit their tips by logging onto the Crime stoppers website at NYPDCrimeStoppers.com.