Grizzlies sign GG Jackson II to multi-year contract, waive Chimezie Metu

The Memphis Grizzlies have signed forward GG Jackson II to a multi-year contract. And in a related move, the Grizzlies waived forward Chimezie Metu. Jackson II (6-9, 215) has appeared in 20 games (one start) as a rookie for the Grizzlies this season and has averaged 9.9 points and 3.5 rebounds in 18.3 minutes since …