England's defence is suddenly a worry

Neither issue has been detailed beyond that word 'doubt', which in September is either nothing or the start of a much longer conversation. Konsa has become a regular fixture in recent squads, and O'Reilly's rise from Manchester City's academy into the senior picture has been one of the more encouraging defensive stories of the year. Losing either, even for one match, thins out options that weren't exactly overflowing to begin with.

BBC Sport's report gives no timeline on when either player's involvement will be confirmed, which usually means a late call on the training pitch rather than a scan result sitting in an inbox somewhere. That's standard for a Tuesday night fixture squeezed into an international window: nobody wants to rule a player out on Sunday if Monday's session tells a different story.

Who steps in

If Konsa doesn't make it, the door opens for whoever's next in the centre-back pecking order to get minutes against a Czech Republic side that will fancy its chances of frustrating a patched-up defence. O'Reilly's versatility, comfortable both at full-back and further forward, means his absence could reshape more than just one position on the teamsheet.

The uncertainty matters because Nations League form still counts. Seeding, momentum, and squad rhythm ahead of the bigger tournament conversations all get shaped by nights like this one, and an unfamiliar back four against unfamiliar opposition is not the ideal way to build any of it.

What happens next

Expect final clarity closer to kick-off on Tuesday, with team news likely to confirm whether either defender travels into the starting XI or watches from the bench. Until then, this is a fitness test story, not a farewell one, and the smart move is waiting for the teamsheet rather than the training-ground rumour mill.