Opener Tayyab Arif scored an impressive 57 and Mohammad Taha a patient 51 — both playing their first Test — while Azam hit 50, as Sri Lanka’s decision to bowl on what appeared to be a green pitch in Rawalpindi seemed to backfire. Captain Babar Azam and two debutants were among four batters to hit half-centuries as Pakistan reached 281-5 on day one of the first Test against Sri Lanka on Monday.