Odds

Reasoning

Watford compete in the Championship, one division above Peterborough, and have a home win over Southampton already this season, indicating strength at Vicarage Road. Peterborough lost away to Bradford in League One and face multiple injuries and suspensions to key players such as Adebisi, Hughes, Garbett, and Frith, weakening their squad further. In a knockout competition, the combination of a higher-division side at home against a depleted opponent strongly suggests Watford will advance.