Non-run out of the day
Danushka Gunathilaka had faced just three deliveries of Sri Lanka's innings when a direct hit at the non-striker's end might well have sent him on his way, had England bothered to appeal more vociferously. Backing up a mistimed drive into the covers from his partner, Kusal Perera, Gunathilaka dabbed his bat into the crease as Eoin Morgan pinged off his bails but the verdict would surely have been out had the decision been sent upstairs. England weren't too badly short-changed in that Liam Plunkett over, however. Perera was cramped for room on the pull two balls later, and caught at fine leg by Tymal Mills.
Debut of the day
Shortly before the toss, Mills was presented with his England T20 cap by Morgan - a proud moment for a cricketer who thought his career was over two years ago, following the diagnosis of a congenital back condition that forced his retirement from first-class cricket. His opening over proved as brisk as his reputation - a 92.5mph loosener to Gunathilaka followed by a second-ball flinch into the covers that could have been a run-out with a direct hit. It was a sharp and threatening arrival.
Debut of the day 2
Liam Dawson was a mildly controversial addition to England's World T20 squad - he was picked as England's third spinner ahead of Lancashire's Stephen Parry, despite England's coach Trevor Bayliss never having seen him bowl in a match situation. However, he needed just five deliveries to demonstrate his wicket-taking potential - in front of an appreciative Hampshire home crowd, he ended Gunathilaka's stay via a bottom-ended heave to long-off, then cherry-picked a loose return drive from Kusal Mendis one over later.
Cameo of the day
Dasun Shanaka started his tour of England with a bang back in May, where his three-wicket burst on the first day of his Test debut up at Headingley briefly offered Sri Lanka a glimmer of the ascendancy. But his sign-off - with the bat at least - was idiotic in the extreme. Facing up to his first ball from Dawson, he lobbed the ball towards Jason Roy in the covers, set off for an easy single then inexplicably turned for the second. Roy's shy was as fast and flat as you'd expect, and Buttler whipped off the bails with the batsman still a metre from the crease.
Double-act of the day
Collisions in the outfield can often be horrific affairs - think Jason Gillespie and Steve Waugh at Kandy in 1999, or Rory Burns and Moises Henriques at Arundel last summer. But somehow, Roy's and James Vince's coming-together at deep midwicket turned into be a fine piece of tag-team fielding. Ramith Rambukwella launched a slog high into the leg-side, both men converged, and as they spun off one another - Vince ended up tumbling over a speaker behind the rope - the ball was squeezed to a halt two metres inside the rope, like a handbag caught in the sliding doors of a tube train.
Injury of the day
It looked a fairly innocuous dismissal at first glance - a lofted drive from Dinesh Chandimal off Chris Jordan that Morgan, pocketed at extra cover with what appeared to be the minimum of fuss. But then, seconds later, England's captain was jogging rather urgently off the field. It soon transpired he had dislocated the ring finger on his left hand, but a tweet from the England camp confirmed he would "bat as normal" … which, in light of his recent form, was a bit of an open goal for the many wags on social media. As it transpired, Morgan's 47 from 39 balls was his highest score in 22 international innings.