Hello Ken, here I would like to learn from others, because its not IDable to me. But I cant resist to write my thoughts:
First impression says: looks good for an Hippolais. Long, slender, blunt-tipped bill, open face with beady eye, square cut tail with not extremly long and full undertail-coverts.
And further? Bill seems pale ("ill") greenish-yellowish at the base and dark (blackish towards the tip). I see a similar colour at the vent and undertail-coverts. This shouldnt be a normal colour for any Hippolais, but I think this can be explainend by reflection of the foliage. So I wouldnt trust in colours here.
More: such a blurred and appearently colour-shifted picture (no offense as allways) seems to hard, it could even be a pittfall picture of a Bonnelis Warbler when ignoring the bill.
Conclusion: I would say, its one of those that are better left unidentified, but can be stored as a PROBABLE Hippolais. Is the default species an Icterines, which I think is scare/rare on migration or is Melodious similar frequent there? It looks really short winged, so this might be a Melodius Warbler, but I dont think this can be assesed with certainty.
Speculating about rarer Hippolais is beyond my knowledge and I dont think its adisable in this case.
But: if someone can provide an ID I would be happy to learn. So thanks for sharing, Ken!