I don't know how he reached 33 from 17 in just four years. Flat pitches or bowling against him? He is great player, no doubt about that, but this is insane achievement to be honest.
Root Surpassed Cook's tally of test 100s with him present in the Comm Box. Sachin (35 100s) also surpassed Sunny G's tally of test tons with him being in the Comm Box.