The Celtics on Monday picked up the fourth-year options on wing Romeo Langford and forward Grant Williams, a league source confirmed.
Langford, who will be paid $5.6 million next season, has been slowed by injuries throughout his first three years but has shown promise as a high-level defender and has improved his once-wobbly jump shot. He has played in three games this season, averaging 6 points and 3 rebounds while shooting 50 percent from the 3-point line.
Williams, who will earn $4.3 million next year, is averaging 9.8 points per game this season and shooting 50 percent from beyond the arc. The 6-foot-6-inch forward has shown value as a small-ball center in Boston’s more versatile lineups.