Chaffee scored a goal and added two hits in Saturday's 5-4 loss to the Senators.
Chaffee got the Lightning within a goal in the third period, but the comeback stalled out there. The 26-year-old has two points, two shots on net, four hits, three blocked shots and a plus-2 rating over four appearances this season. Chaffee looks to be secure in a fourth-line role, as head coach Jon Cooper has often opted to scratch one of Cam Atkinson or Conor Sheary up front.