Sometime down the road, the Red Sox may look back on this gut-wrenching 4-3 loss with a series of regrets. They may regret letting Rajai Davis hit an inside-the-multiple-errors-HR to score the game's first run. They may regret squandering Mike Napoli's dramatic ninth-inning, two-out, two-run HR that tied the game. They might regret wasting a decent Jon Lester start. They may regret not having Jose Iglesais at short on the game's final play. And they may regret losing a full game to a Tampa team that did complete a comeback win. The lead is down to three.