Sounds like it's been an inexplicably bad day at the office for Oli, with his serve in particular being inexplicably off, although there does appear to have been at least some wind issue.

Such days happen, even to some of the very best, even while evidently perfectly healthy.

I admittedly didn't see today's match, to really see how it looked, but it was not a bad week for Oli before today, if seemingly a bit streaky.

Hopefully, he can find some solutions before he gets going again next week.