Free agent guard/forward L.J. Peak has agreed to a partially-guaranteed deal with the Boston Celtics, according to ESPN's Adrian Wojnarowski.

In addition to that, forward/center Thomas Robinson was seen working out at the facility in the midst of Isaiah Thomas' pending physical, per Wojnarowski.

The Celtics would have only one roster spot available if the trade fully goes through, but would have 16 guaranteed contracts if the deal is voided, according to ESPN Insider Bobby Marks.

Peak, a 6-foot-5 Georgetown product, went undrafted in this year's NBA Draft, but had signed with the Houston Rockets earlier this offseason, (per Fox's Mark Berman) after showing enough promise with a versatile floor game that saw him average 16.3 points, 3.8 rebounds, 3.5 assists, and 1.1 steals per game in his junior season with the Hoyas.

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He could spend time with the team's G League affiliate, the Maine Red Claws, as he develops throughout the season.

Robinson, a five-year journeyman has played for six different teams since being drafted in 2012, struggling to find a niche in the NBA and get to the 20-minute-per-game mark during his time as a pro.

The 6-foot-10 forward last played as a deep reserve for the Los Angeles Lakers, averaging 5.0 points and 4.6 rebounds per game through 48 games in the purple and gold.