San Francisco 49ers tight end George Kittle had some tough luck in the injury department last season. In theory, the 49ers should be celebrating, but there is no shortage of risk that comes with such a scenario. Unnecessary George Kittle reinjury would be 49ers' worst nightmareThe 49ers' first game of the season isn't just any season opener. If there were ever a game to avoid rolling out a tight end fresh off an Achilles tear, it would be the 49ers' Week 1 in Melbourne. 49ers would benefit from seeing lesser-known commoditiesIf Kittle were to play Week 1, it would mean the 49ers wouldn't get an early look at some of their younger, lesser-known investments.