Gilbert and Connor Clifton were surprise additions to Buffalo's lineup on Tuesday, with their additions not being announced prior to warmups. Mattias Samuelsson and Henri Jokiharju will both be healthy scratches in their place.

Zub has not played since suffering a concussion in the third game of the season but is nearing a return to the lineup. That said, he will miss at least one more game, sidelined on Tuesday against the Buffalo Sabres. The 29-year-old hard-hitting defenseman has battled injuries the last two seasons, limited to 53 and 69 games respectively.

After a 3-0 shutout victory over the Seattle Kraken courtesy of Anton Forsberg in their previous game, the Senators will switch back to Ullmark between the pipes on Tuesday night against the team that drafted him, the Buffalo Sabres. Ullmark has showcased mixed results in his first season with the Senators, showcasing a respectable 2.62 GAA and .902 SV% through six games (2-3-0). The Senators enter Tuesday's contest as -116 road favorites against a Sabres club riding a three-game losing skid.

After a 3-0 shutout victory over the Seattle Kraken courtesy of Anton Forsberg in their previous game, the Senators will switch back to Ullmark between the pipes on Tuesday night against the team that drafted him, the Buffalo Sabres. Ullmark has showcased mixed results in his first season with the Senators, showcasing a respectable 2.62 GAA and .902 SV% through six games (2-3-0). The Senators enter Tuesday's contest as -116 road favorites against a Sabres club riding a three-game losing skid.

MacDermid has been a healthy scratch the last two games but will re-enter the lineup on Monday against the Edmonton Oilers. The 30-year-old MacDermid has zero points, 10 penalty minutes, one block, and six hits while averaging 5:05 time-on-ice through three games this season.

Zub has not played since suffering a concussion in the third game of the season, but is nearing a return to the lineup and could play as soon as Tuesday against the Buffalo Sabres. he 29-year-old hard-hitting defenseman has battled injuries the last two seasons, being limited to 53 and 69 games respectively.

Ullmark has had an inconsistent start to his tenure as a Senator, partly derailed due to injuries, but was tremendous in his last outing, saving 26 of 27 shots (.963 SV%) in an 8-1 win over the St. Louis Blues and will return to the crease on Friday night against the New York Rangers. The Senators are sporting a 5-4-0 record and rank in the top five in the league offensively, averaging 4.2 goals per game. That said, the Senators enter the action on Friday as +170 road underdogs against a Rangers club with a 6-2-1 record.

Ullmark has had an inconsistent start to his tenure as a Senator, partly derailed due to injuries, but was tremendous in his last outing, saving 26 of 27 shots (.963 SV%) in an 8-1 win over the St. Louis Blues and will likely return to the crease on Friday night against the New York Rangers. The Senators are sporting a 5-4-0 record and rank in the top five in the league offensively, averaging 4.2 goals per game. That said, the Senators enter the action on Friday as +170 road underdogs against a Rangers club with a 6-2-1 record.

MacDermid played the last two games for the Devils but will return to being a healthy scratch on Wednesday against the Vancouver Canucks. The 30-year-old MacDermid has zero points, 10 penalty minutes, one block, and six hits while averaging 5:05 time-on-ice through three games this season.

The Senators, riding a two-game losing skid, will turn to Ullmark in the crease for the second time in the last three games after he made his return from a muscle-strain injury. Ullmark struggled in his return, allowing five goals on 27 shots (.815 SV%) in a 6-4 loss to the Vegas Golden Knights. The Senators are scoring 3.75 goals per game thus far but have not received consistent support in their crease. They enter the action on Tuesday as -150 home favorites against the St. Louis Blues.

The Senators, riding a two-game losing skid, will turn to Ullmark in the crease for the second time in the last three games after he made his return from a muscle-strain injury. Ullmark struggled in his return, allowing five goals on 27 shots (.815 SV%) in a 6-4 loss to the Vegas Golden Knights. The Senators are scoring 3.75 goals per game thus far but have not received consistent support in their crease. They enter the action on Tuesday as -150 home favorites against the St. Louis Blues.

Pinto didn't show any signs of an ailment in Tuesday's 4-0 win over Utah HC, but did not play on Friday, and will be out of the lineup on a week-to-week basis. The 23-year-old Pinto has three points and -3 plus/minus through six game this season. Cole Reinhardt will draw into the Senators' lineup as Pinto's replacement.

Macdermid will re-enter the lineup on Friday as the Devils opt to get some fresh bodies into the lineup for the tail-end of the back to back. Nathan Bastian will sit in his place.

Pinto didn't show any signs of an ailment in Tuesday's 4-0 win over Utah HC, but was not present at practice on Thursday, and will not play on Friday against the Vegas Golden Knights. The 23-year-old Pinto has three points and -3 plus/minus through six game this season. Cole Reinhardt will draw into the Senators' lineup as Pinto's replacement.

Ullmark has not dressed since the second game of the season but will return to the Senators' crease on Friday after missing four straight games. In his first two games as a Senator (1-1-0), Ullmark has a respectable 2.58 GAA and .914 SV%. The Senators, winners of two straight, enter action on Friday as +113 road underdogs against the Vegas Golden Knights.

Merilainen being sent down to the Belleville Senators (AHL) is likely an indication that Linus Ullmark (strain) is ready to return to the Senators lineup. The 22-year-old Merilainen has a 3.47 GAA and .852 SV% in three games with Belleville this season (2-1-0).

Pinto didn't show any signs of an ailment in Tuesday's 4-0 win over Utah HC but was not present at practice on Thursday. The 23-year-old Pinto has three points and -3 plus/minus through six game this season.

Ullmark has not dressed for the last three games and will be sidelined for at least one more, missing Tuesday's game against the Utah Hockey Club. The 31-year-old net-minder just signed a four-year, $33 million contract extension with Ottawa days before the start of the season. He has a 2.58 GAA and .914 SV% through two games with the team so far (1-1-0).

With Linus Ullmark (strain) sidelined for at least one more game Merilainen has been recalled to serve as Anton Forsberg's backup on Tuesday against the Utah Hockey Club. The 22-year-old Merilainen has a 3.47 GAA and .852 SV% in three games with the Belleville Senators (AHL) this season (2-1-0).

If Grieg is able to return from a three-game absence due to an upper-body injury, he could seamlessly be inserted into the lineup as David Perron (personal) will be away from the team. The 22-year-old Grieg had been held off the scoresheet in two games this season, recording a -2 plus/minus while averaging 14:03 time-on-ice.