He improved his scoring to an 18.7 points per game clip as a senior while leading the team to a 19–5 and a berth in the regional semifinals.

Sibert was named the Ohio's Gatorade Player of the Year and the Associated Press selected him to the First Team All-Ohio.

He opted to transfer to the Dayton Flyers[4] after the season due to lack of playing time, having remained on the bench in the NCAA tournament.

[5] OSU coach Thad Matta blamed poor shooting and subpar defense for Sibert not receiving the minutes he wanted.

[13] On October 31, he was acquired by the Erie BayHawks of the NBA Development League as an affiliate player of the Magic.

[15] On August 23, 2017, Sibert was selected by the new incarnation of the Erie BayHawks in the NBA G League expansion draft.

[23] On January 12, 2020, Sibert scored 35 points in a 123–119 victory over Raptors 905, the Skyhawks' fourth straight win.

[26] On November 28, 2022, Sibert returned to Greece for PAOK, signing for the rest of the season in order to replace the injured Zaccheus Darko-Kelly.