Shaheen started the over with a yorker, but was played off the pads for a single.
Another good delivery, a yorker outside the off stump resulted in a dot ball.
Rathnayake tried to pump the third straight down the ground but ended up in an easy catch at long on, bringing an end to an otherwise brilliant innings by the Sri Lankan batsman.
Wellalage, the new man in, took a single to get off the mark, before Shanaka edged the fifth delivery between third and backward point for a four.
Shaheen ended the over with a yorker.
