The Boston Celtics announced the signings of Tacko Fall, Javonte Green, Tremont Waters and Max Strus on Thursday but, per team policy, the terms of the deals were not disclosed.

Strus and Waters were signed to two-way contracts, filling both of Boston’s two-way slots. The other deals were a bit of a mystery, but that’s no longer the case.

Fall’s contract is an Exhibit 10 deal, according to The Boston Globe’s Adam Himmelsbach. This is the same type of deal he agreed to with the Celtics prior to summer league.

An Exhibit 10 contract is non-guaranteed but can be converted into a one-year or two-way contract.

Green’s deal is partially guaranteed, per Yahoo Sports’ Keith Smith.

The Celtics now have 18 players heading into training camp with one more roster spot open.

Thumbnail photo via Mark J. Rebilas/USA TODAY Sports Images