Darren Walsh / Chelsea FC / Getty The Champions League knockout stage is in full swing. Below, we dissect the biggest talking points from this week's round-of-16 action. Chelsea can't replace Giroud - and they have tried It was something that only a player of a certain intelligence and, of course, athleticism would dare to try. In a game that was getting uglier - and perhaps bending to the will of Atletico Madrid - Olivier Giroud flung his 34-year-old body backward to hook an acrobatic effort past Jan Oblak. It didn't really suit the match, and it was beautiful. It shouldn't be that much of a surprise anymore. This is what the Chelsea striker does.