Left-arm spinner Liam Dawson into the attack as England get spinners from both ends.
He makes a tidy start, giving away just three singles in his opening over as both Kamindu Mendis and Shanaka look to bat cautiously and rebuild the innings.
Jacks to bowl out, as he continues for his fourth over in a row. A leg before shout against Kamindu turned down who then clips the third ball for a single.
Shanaka then takes full toll of a short ball, sending the ball over midwicket for a six.
Jacks makes a good comeback, beating Shanaka on the outside edge with a good delivery slanted across the right-hander from round the wicket.
Jacks registers excellent figures of 3/22 from his four overs.