Is the injury bug buzzing back into town? After a year mostly free of big changes to big cards, Saturday’s UFC on FOX 9 reminds us that this sport of MMA takes its toll on participants, which in turn leaves the promotion (and fans) to make do. And they will, of course. Not long ago, it was 2012, when headliner after headliner was scrapped due to bumps and bruises. “Card subject to change” was a way of life, it then seemed. The promotion has had infinitely better luck this year, and as a result, we’ve seen some of the best fights in its history