Vote: Which Free Agent Guard Aside From Ray Allen Would You Most Like to See the Celtics Sign?In a span of just a couple of days, the Celtics went a long way in solidifying their roster for next season.

On Thursday night, the C's grabbed a trio of players, two of them in the first round of the draft, when they selected Jared Sullinger and Fab Melo with the 21st and 22nd picks, respectively.

Just two days later, Kevin Garnett said he was indeed coming back, agreeing to a three-year deal with Boston.

But Danny Ainge's work isn't done just yet, with free agency under way. It's a fairly limited crop of players, but a few interesting options are out there.

Much of it will ride on what Ray Allen decides to do. The veteran guard is reportedly getting interest from a handful of teams. If he does move on, the Celtics could go in a few different routes when looking to add backcourt depth.

One of the most interesting options may be O.J. Mayo. The former USC guard has been connected to the Celtics in the past in various trade rumors, and he's on the market this summer. The former Grizzlies guard would give the Celtics athleticism, something they have lacked in the past few years. That need for athleticism could also make a player like Nick Young an option as well. He's still relatively young, and he's also athletic. He has the ability to get to the rim and make his own shot, a trait that could come in handy for a Boston offense that, at times, can get rather stagnant.

Another option for the Celtics could be Jamal Crawford. The 6-foot-5 guard could prove to be a pretty viable option off the Boston bench, a role he performed quite nicely with Portland last season. The 12-year veteran started in just six games, but he still averaged 13.9 points per game. Another veteran guard who could likely serve in that same capacity would be Jason Terry, a player who is also available.

Who do you think the Celtics should get?

Which free agent guard aside from Ray Allen would you most like to see the Celtics sign?