Gabriel Bourque scored for Nashville.
Grabovski, who was late to camp because of visa issues, assisted on both goals in his Caps debut Monday, a 3-2 overtime loss at Boston.
Grabovski disrupted a Nashville clear to set up Fehr's first goal at 4:37 of the first.
Grabovski's final assist came when he took a pass from Backstrom and passed it across the crease to Ovechkin for a power-play goal to make it 4-0 at 19:18 of the third period.
Sabres blank Blue Jackets 3-0
Buffalo made it 2-0 at 9:10 of the third when Grigorenko beat Columbus goalie Jeremy Smith over the right shoulder.
Grigorenko assisted on Zemgus Girgensons' empty-net goal in the final minute.
Sabres defenseman Mike Weber had assists on all three goals.
Columbus hosts the Carolina Hurricanes on Thursday to end the preseason while the Sabres host the Hurricanes on Friday in Carolina.
OTTAWA -- Bobby Ryan scored for Ottawa and also gave the Senators a scare in their 5-2 win over the Montreal Canadiens on Wednesday.
Ryan left the game with just over five minutes remaining in the second period after a collision behind the net, but he returned shortly after. However the Senators opted on the side of caution and kept him out of the lineup for the third period.
Montreal opened the scoring as Nygren beat Hammond with a shot from just inside the blue line. Ottawa tied the game minutes later as Conacher passed to a trailing MacArthur.
Ottawa ended the period with a 2-1 lead on Ryan's power-play goal.
The Senators made it 3-1 on Michalek's goal as he managed to dig the puck out during a goal-mouth scramble and roofed it over Budaj.
Conacher made it 4-1 with a power-play goal, while Zibanejad picked up his first of the preseason to make it 5-1.
DETROIT -- Chris Kunitz had two goals and an assist to help the Pittsburgh Penguins beat the Detroit Red Wings 5-1 on Wednesday night in an exhibition game.
Jokinen and Dupuis scored in the final 5 minutes of the first to give the Penguins a 2-0 lead. Adams made it 3-0 3:14 into the second period. Miller scored with 7:11 left in the middle period.
Kunitz's first goal came with 2:35 remaining in the second and he added a power-play goal 9:28 into the third.
ST. PAUL, Minn. -- Niklas Backstrom made 33 saves and the Minnesota Wild beat the St. Louis Blues 3-1 Wednesday night in an exhibition game.
Cooke gave the Wild a 1-0 lead midway through the first period when his wrist shot from high in the slot bounced high off the pads of Halak, landed near the goal line and trickled across.
Coyle scored his team-best third preseason goal on a breakaway 38 seconds into the third and Mitchell stole the puck from Elliott for a wraparound short-handed goal 2 minutes later for a 3-0 lead.
Schwartz scored a short-handed goal midway through the third for his team-leading third preseason goal.
CALGARY, Alberta (AP) -- Zbynek Michalek scored at 3:53 of overtime Wednesday night to give the Phoenix Coyotes a 3-2 preseason victory over the Calgary Flames .
The goal came on a slap shot from the blue line with Reto Berra screened by a group of players in front.
Friday night with a home game against the San Jose Sharks .
Mike Smith had 29 saves for the victory.
Calgary trailed 2-0 until halfway through the third period when the Flames beat Smith, tying the game with goals less than two minutes apart from Bouma and Knight.
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