By Zach Koons Cleveland now has its young All-Star locked down for at least five more years. View the original article to see embedded media. Cavaliers guard Darius Garland is the latest young star to receive the maximum designated rookie contract extension after agreeing to terms with the team on Saturday, according to ESPN’s Adrian Wojnarowski. The five-year extension is worth a base of $193 million with the possibility of increasing to $231 million if Garland were to make one of the three All-NBA teams twice. According to Wojnarowski, the extension sets a new franchise record as the largest…