Abu Dhabi: Left-arm pacer Junaid Khan chipped in with a maiden five-wicket haul to help Pakistan bundle Sri Lanka for a mere 197-run total on the first day of the opening Test on Tuesday.
The 21-year-old, playing in only his second Test, with 5/38 and was ably supported by pace partner Umar Gul (2/37) and off-spinner Saeed Ajmal (2/56) after Pakistan put Sri Lanka into bat on a greenish Abu Dhabi stadium pitch.
Pakistan finished the day at 27/0, with Mohammad Hafeez on 17 and Taufiq Umar unbeaten on eight.
Sri Lanka, who were confidently placed at 51/1 at lunch, could never recover from the loss of six wickets for 65 runs between lunch and tea, as Khan produced a burst of three wickets in the space of just five deliveries.
Vice-captain Angelo Mathews cracked four boundaries and a six in a fighting unbeaten 52 to avoid total disaster, putting up innings' highest partnership with Suranga Lakmal of 54 after Sri Lanka were tottering at 114/7.
Paceman Aizaz Cheema (1/51) had opened the gates by dismissing former Sri Lanka captain Kumar Sangakkara (2) in the second over after lunch, forcing an edge off the left-hander which was smartly held by a diving keeper Adnan Akmal.
Opener Tharanga Paranavitana then gloved a short-pitch delivery off Gul to Akmal to leave the Islanders struggling at 79/3. Paranavitana hit three boundaries during his patient knock of 37.
Skipper Tillakaratne Dilshan, who demoted himself to number five against Australia last month, hit the first ball he faced for a boundary and added 33 with Paranavitana before Sri Lanka lost the way.
Dilshan was unlucky to be given out, caught behind off Ajmal by New Zealand umpire Tony Hill when replays showed he clearly missed the ball.
Brief scores
Sri Lanka 197 (Mathews 52*, Paranavitana 37, Junaid 5-38, Gul 2-37)
Pakistan 27 for 0 (Hafeez 17*, Taufeeq 8*)
Status Pakistan trial by 170 runs