Southampton manager Ronald Koeman made a tactical change for his side's match against West Bromwich Albion at the weekend.
The Saints deployed two more advanced midfielders at the Hawthorns, with Koeman keen to increase their attacking threat, and it led to Romeu losing his place.
“We did a little bit different on the midfield," Koeman explained to the Daily Echo.
“That was the reason that Romeu wasn’t starting. [We were playing] with two offensive midfielders and Oriol is more defensively [minded] than Prowsey or Davo for example, but Victor was again important on the midfield.”
Koeman's changes did not work to the desired impact, with Southampton struggling to break down a resilient West Brom backline.
The Baggies are typically hard to score against with Tony Pulis at the helm, and their defensive line proved difficult to penetrate at the weekend.
Southampton are yet to click into gear this term, and Koeman's tinkering with the tactics is hardly a surprise, as a result.
Romeu's omission was no reflection on his start, though, as the former Chelsea man has largely impressed since moving to St. Mary's.
The south coast club have had a good record in the transfer window, and it seems that Romeu could be another handy addition for the future.