That is the end of our coverage for today.
There's been quite a bit of unfavourable weather about, but it's been a very good day nevertheless for Liam Livingstone, Tom Westley, Paul Horton and - almost inevitably - England captain Alastair Cook, who all made centuries.
But cricket is a 'funny old game' and on the other side of the coin was Joe Root, one of the world game's premier batsmen, who suffered the indignity of a first-ball duck in his first innings for Yorkshire since 2014.
C'est la vie, que sera sera...no doubt he will be looking to put that behind him in the very near future.
Thank you for following the commentary. We'll be back again on Tuesday from about 10:45 BST. See you then.