Grizzlies sign Dakota Mathias to second 10-day contract

The Memphis Grizzlies have signed wing Dakota Mathias to a second 10-day contract under the NBA's COVID-related hardship exception. Mathias (6-4, 200) signed his first 10-day contract with the Grizzlies on Dec. 29 and totaled six points and two rebounds in four minutes over four games. Undrafted in 2018 NBA Draft following a four-year collegiate …