For only the second time in history, all the top four batsmen scored centuries in one innings of a Test match. To be fair, the Sri Lankans don't really have a quality strike bowler who could trouble the Pakistanis.
If there was any doubt that Babar Azam is one of the most valuable batsmen today:
42.67 - Babar's career average. It is the first time his average has gone above 40 since his third Test in 2016. At the end of 2017, Babar averaged 23.75 after 11 Tests. In the last two years, he has upped his game significantly, scoring 1232 runs - 616 each in 2018 and 2019 - at an average of 61.60. That average is the highest among the 14 batsmen who have scored 1000-plus Test runs in the last two years.
Wow. I definitely expected some improvement in Tests but not by that much!