Electing to bat first, Crawley and Ben Duckett had to withstand some outstanding swing bowling from a returning Jasprit Bumrah and Mohammed Siraj asking tough questions constantly.
Incidentally, it was Zak Crawley's first Test century and his innings of 267 runs has now become the second highest maiden Test ton by a batsman.
Buttler and Crawley's stand was the joint sixth highest partnership of all time for England in Test cricket. England are leading the series 1-0.
The pair continued the fightback they had put up towards the end of the second session and their partnership for the fifth wicket stands at 205
Zak had partnered his captain Ben Ben Stokes to steady English the ship and guide the team to a decent total on Day 4 against the West Indies
Former captain Nasser Hussain had earlier advised Denly to change his technique in order to score big runs or else he could lose his spot in the team.
