Mbekile, 31, didn't play a single match for the Brazilians in the 2017/18 season and judging by the response on social media, Pirates supporters are not really chuffed with his signing.
The 1995 African champions have also snapped up Wits midfielder Ben Motshwari, but his past season statistics don't make for good reading with just 11 appearances in all competitions.
Bucs, however, have also brought in players who had decent campaigns in 2017/18 like Vincent Pule from Wits. The midfielder starred in 28 matches for the Clever Boys, helping them win the Telkom Knockout, and would relish the challenge to continue playing regular football at Pirates.
Like Pule, midfielder Linda Mntambo arrives from Chippa United on the back of a good season. He was signed by Chippa from NFD side Jomo Cosmos in January and in just a few months, managed five goals in 14 appearances for the Port Elizabeth-based outfit.
Pirates' other signings are Meshack Maphangule [Black Leopards], Abel Mabaso, Paseka Mako [both Chippa United] and Kudakwashe Mahachi [Golden Arrows].
The nine players will join the rest of the squad when the team returns for pre-season training on June 18, while more signings could be expected.
Pirates have had to bolster their squad considering they will be playing in the domestic league from August and the CAF Champions League from November.