Simpy put, injuries to active wrestlers can be a disaster, especially to someone as consistently active as Shield member Roman Reigns. A couple of nights ago Reigns suffered a slight injury to his ankle, which has had many fans gasp in worry that it could sideline him for some time.
"Several people who attended last night's SmackDown tapings in Omaha, Nebraska reported that Roman Reigns appeared to have hurt his ankle during a six-man tag match against Randy Orton, Sheamus and Kofi Kingston. The spot happened when Reigns was on the ring apron with Orton.
Reigns was seen limping around the ring during the end of the match, and he was helped to the back by a referee after the finish. The Shield suffered a post-show beatdown by the faces, but only Dean Ambrose and Seth Rollins were involved."-eWrestlingNews
It is news that has worried people that it may slow down The Shield's highly impressive run in WWE as of late. The extent to this injury is yet to be seen though. If it turns out that he will just be two or three weeks it really isn't that big a deal, and shouldn't slow down the dominance of The Shield on both Raw and Smackdown. Yes, he is one half of the Tag Team champions, along with Seth Rollins, but I don't think there reign is in any way in turmoil. They've been given the titles because of a long term plan that WWE has for them (something that doesn't happen very often) and so I'm positive that their tag team reign will remain intact.
What helps The Shield and also creative in this type of situation is that they're a three man group. Dean Ambrose may not be Tag Team champion but he is still of course a big part of the group. We might not see another 6-Man Tag Team match for a while, and the Tag Team champions reign may be put on stand by for a while, but Ambrose and Rollins is still enough to keep this group driving forward.
It's hard luck, and maybe it has come at a less than perfect time, but it still isn't a big problem. Especially if this injury doesn't turn out to be anything more than a slight tweak or strain. it's just a matter of seeing how badly this injury is. If it's OK, great. If it's not so good, it's definitely something that WWE should be OK to deal with.