Video: Chelsea striker Diego Costa hits a real power shot with the Adidas smart ball

Diego Costa can't half hit a football.

It's not surprising that he's bagged 19 Premier League goals for Chelsea this season. The former Atletico Madrid man has a howitzer of a shot on him, but until now we didn't know quite how much power he was packing. Well, the guys at F2 Freestylers put him to the test with an Adidas 'Smart Ball' - which can track the power, trajectory and spin of a strike and beam the data back to a smartphone. It turns out Costa's effort was a net-busting 68mph. And he didn't even look like he was trying. Not bad for a man of 46.  https://www.youtube.com/watch?v=qHjKry0LYxI