Amir picked up a stress-related injury of his right shin and has been advised rest for the next two to three weeks. However, the left-armer could only manage three more overs before the pain flared up again.
Pakistan, who have never lost a Test series in the United Arab Emirates, also wasted both their reviews off the second new ball to cap a woeful day for them yesterday.
Considering the fact that he had walked off the field during the first day itself, it begs the question why Pakistan's team management did not take him for a scan immediately and allowed him to bowl with a shin injury on the second day.
On day one of the Day-Night Test, Amir had hurt his right shin and returned to the dressing room towards the close of play on Friday. Left-arm spinner Rangana Herath, 39, was the catalyst for a 21-run victory in the first Test in Abu Dhabi on Monday, as he took 6-43 to foil Pakistan's modest chase of 136.
Yasir Shah struck in the 23rd over as he got Silva caught by captain Sarfraz Ahmed to bring a temporary respite to the Pakistan camp. He took six wickets in 55.5 overs. Yasir, who had to do the bulk of the bowling, especially in Mohammad Amir's absence, continued to leak runs despite fetching a lot of turn from the surface. Karunaratne was unbeaten on a solid 170 for his seventh Test hundred, alongside Niroshan Dickwella on 47 not out, as Sri Lanka added 101 runs after resuming at overnight total of 254-3.
Lanka made their intent clear from the beginning by playing positive cricket as they are bidding to win the two-match series after taking a 1-0 lead by beating the hosts in the first match.
According to reports, discipline has been top priority for the islanders and one member of the current side has already been warned of possible suspension if he breaks team rules. And if they do manage that, the ideal storm created in Pakistan's dressing room would have played a major role in it.