POSTED: Jul 30, 2015 9:56 PM ET
The team announced the signings on Thursday, along with the re-signing of forward Lou Amundson. The 7-foot-3 Porzingis was the fourth overall selection in the recent draft and played professionally for Cajasol Seville in Spain the past three seasons. At the NBA summer league in Las Vegas this month, the 19-year-old averaged 10.5 points in four games.
Grant, a 6-4 guard, was the 19th overall pick who averaged 14.6 points and 5.8 assists in four seasons with Notre Dame. In his senior season, he averaged 16.5 points and 5.8 assists in 38 games. In five summer league games, Grant averaged 11.8 points and 4.8 assists in five games. Also Thursday, New York released guard Ricky Ledo. He averaged 7.4 points, 2.8 rebounds, 1.5 assists and 19.4 minutes in 12 games for the Knicks last season