Dynamo are unable to clear their lines following the corner from the right, with the ball making its way to Jordi Alba on the left. He spotted the run of his fellow defender in space at the far post and floated a pinpoint centre into the area, which the 34-year-old volleyed into the net from close range.
Gerard Piqué has proven time and time again that in terms of an old-fashioned centre-forward, he's just about the best 'striker' this club has.
Going back over Pique's total of more than 60 career goals for club and country and you'll see a variety of different finishes and, above all, a tigerish desire to put the ball in the net to give Barcelona the lead.
With his goal this evening, Piqué has become the oldest UEFA Champions League scorer for the club, aged 34 years and 260 days – surpassing Sylvinho (34 years 241 days), who netted against Shakhtar Donetsk in December 2008.
Barcelona dominated the first half but threatened to have nothing to show for it until Piqué's intervention soon after the half-hour mark. Depay has created a number of opportunities for his teammates, but they have failed to truly trouble Bushchan with the bulk of them.
It was far from the convincing victory they wanted to kickstart their UEFA Champions League campaign, but Koeman's men got their first points of Group E.
Barcelona now rose to the third spot with three points, one point behind Dynamo Kyiv at four points and three points behind group leaders Bayern Munich.