The big one of the service PMIs given its large sector contribution to UK GDP
Forecast 59.2 vs 59.5 prev with composite 58.4 exp/prev
GBPUSD 1.5357 and decent number should see a rally into 1.5380-00 pushing EURGBP down to 0.7220-30 while weaker number should see 1.5300 and 0.7285 again
Market has eyes on other prizes too though don't forget