
Manager Nuno Espirito Santo confirmed the 31 year old, who has made two substitite appearances already this season, was fit but not selected.
Espirito Santo told the Daily Echo: "We have to make the list, we have to make the list. Many of our players stayed at Rush Green, and it's normal."
Ward-Prowse moved to the Hammers for £30million three years ago, following the club's relegation to the Championship the first time around.
But the former talisman has endured a stop-start career since, making just 43 league appearances for three different clubs since 2024/25.
No Ward-Prowse even in the squad...#SaintsFC https://t.co/YNjhX655T1
— Alfie House (@AlfieHouseEcho) August 25, 2026
Espirito Santo bombed Ward-Prowse out of his Nottingham Forest squad while he was on loan at the City Ground, before taking over at West Ham.
The midfielder has often been linked with a move back to Saints, and his potential availability could be interesting to bosses at St Mary's this week.
Saints are still looking for a centre midfielder to replace Shea Charles, who left the club to join Fulham in a deal worth up to £30m earlier in August.
West Ham are tricky negotiators, and the finances required are a stumbling block, but the Irons may lower their asking price by Tuesday's deadline.
Ward-Prowse made 410 appearances after coming through the academy, scoring 55 goals and setting up a further 52 as a Premier League star.