Quit with the "unless you have the ability to scan someone through the tv" bs, what's the need for that kind of comment? It's obvious it was a bad injury as the guy was on the floor for 10 minutes with medics around him. It was a very different type of concussion from Karius' that's obvious for all to see isn't it?
On your last point, are you telling me that a when a footballer gets knocked out by a tackle it's different from when a rugby player or from any other sport for that matter? I'd have thought the grading of a concussion would be based on medical practice and not what sport it happened in. Hence the recovery time is the same no matter what the sport. Yes, Rugby is more physical in general but then I'm pretty sure footballers go into tackles and run up heading the ball too which isn't great for someone who just had a concussion. Based on what you're implying, you're saying footballers should be returning quicker than rugby players because it's a less physical sport, that makes no sense buddy.