Zboril, 21, has skated in 13 games with Providence this season, tallying two goals and two assists for four points with 16 penalty minutes and a minus-four rating.
In his first professional season with Providence in 2017-18, the 6-foot, 200-pound defenseman recorded four goals and 15 assists for 19 points in 68 games. He concluded the season with a plus-12 rating.
Prior to joining the Providence Bruins, Zboril spent three seasons with the Saint John Sea Dogs of the QMJHL. He played in a total of 144 games for the Sea Dogs, tallying 28 goals and 66 assists for 94 points with 174 penalty minutes and a plus-31 rating.
The Brno, Czech Republic native was originally selected by Boston in the first round (13thoverall) of the 2015 NHL Entry Draft
Vladar, 21, has compiled a 1-3-0 record with a 2.81 goals against average and .899 save percentage in six appearances with Providence this season.
In 2017-18, Vladar split time between the Providence Bruins (AHL) and Atlanta Gladiators (ECHL). He compiled a 2-2-0 record with a 2.23 goals against average and .924 save percentage in four appearances with Providence, while earning a 17-18-1 record with a 2.96 goals against average and .911 save percentage in 41 appearances with Atlanta. In his first professional season in 2016-17, Vladar also split time between Providence and Atlanta. He recorded a 4-0-1 record with a 2.62 goals against average and .921 save percentage in eight games with Providence, while posting a 5-9-1 record with a 3.89 goals against average and .887 save percentage in 18 games with Atlanta.
Prior to signing his entry-level contract with Boston, the 6-foot-5, 185-pound goaltender made 30 appearances with the Chicago Steel (USHL) during the 2015-16 season. He compiled a 12-12-4 record, a 2.31 goals against average (fifth in the USHL), a .920 save percentage (fifth in the USHL) and three shutouts in 30 games. Vladar was awarded CCM/USHL Goaltender of the Week honors on two occasions during the 2015-16 season, on November 28, 2015 and March 12, 2016.
Vladar previously played for HC Klando (Czech U20) prior to being selected by the Chicago Steel in the USHL Phase II Draft in the first round, seventh overall. With HC Klando, he played 29 games with a 2.78 goals against average and a .926 save percentage. He represented the Czech Republic at the most recent 2016 World Junior Championship in Helsinki.
The Prague, Czech Republic native was originally selected by the Bruins in the third round (75th overall) of the 2015 NHL Entry Draft.