Four wickets for Worrican
Left-arm spinner Jomel Warrican snatched four wickets on debut to help bundle out Sri Lanka for 200 but West Indies lost Shai Hope before the close, as 12 wickets fell on a slow opening day of the decisive second and final Test, yesterday.
Opting to bat first at the P Sara Oval, Sri Lanka folded in the final hour, with only Milinda Siriwardana showing any major resistance with 68.
Rangana Herath, batting at number nine, ended on 26 not out while first Test century-maker Dinesh Chandimal chipped in with 25.
The 23-year-old Warrican, brought in for pacer Shannon Gabriel, finished with four for 67 and was supported by seamers Jason Holder (2-22) and Jerome Taylor (2-50).
However, in the 32 deliveries possible before bad light ended play with just over 16 overs remaining, the visitors lost the right-handed Hope for four, to stumble to 17 for one at the close.
Opener Kraigg Brathwaite was unbeaten on four and nightwatchman Devendra Bishoo, five.
Sri Lanka had earlier started poorly, losing Kaushal Silva without scoring to the fourth delivery of the day with just a single run on the board, caught at the wicket off Taylor - a decision only given after the Windies opted for review.
In a session which saw only 21 overs bowled, the hosts lost wickets steadily to decline to 59 for four at lunch, with another first Test century-maker Dimuth Karunaratne (13), debutant Kusal Mendis (13) and captain Angelo Mathews (14) all falling cheaply.
Siriwardana then held the innings together after the break with two small partnerships, adding 31 for the fifth wicket with Chandimal and 37 for the sixth wicket with Kusal Perera (16).