And he looked even better in overtime when he sent a high shot past goalie Ondrej Pavelec to give the Bruins a 3-2 pre-season victory against the Winnipeg Jets on Thursday.
"It was definitely nice to be able to score one, and it was one in overtime, too, so it's nice," said Eriksson, who was acquired from Dallas in July in a seven-player deal.
Ryan Spooner and Eriksson went down the ice together and Spooner sent a pass across to Eriksson, who moved the puck with his skate onto his stick to set up his first goal of the pre-season 1:46 in OT.
Spooner and Patrice Bergeron also scored for the Bruins. Devon Setoguchi and Mark Scheifele had Winnipeg's two power-play goals.
Niklas Svedberg stopped 26 shots for the Bruins, who improved their exhibition record to 5-1-0. Pavelec faced 33 shots for the Jets (1-3-3).
The teams play a rematch Friday in Saskatoon.
Eriksson predicted chemistry can develop with Bergeron and Marchand.
"Sometimes it feels really good, sometimes a little bit worse, but that's why you have these games," Eriksson said.
"We had some good chances today again, but we need to step it up a little bit more."
The teams were tied 1-1 heading into the third period after a scoreless second at MTS Centre.
Bergeron had the game's first goal when he took a feed from Marchand and put a close, low shot past Pavelec at 3:54 of the first period for his first goal of the pre-season.
The veteran centre spent the off-season recovering from not one, but four injuries after Boston lost last year's Stanley Cup final in six games to Chicago.
During the final, Bergeron played some games with a broken rib, torn rib cartilage and a separated shoulder. He later found out he also had a collapsed lung.
Winnipeg had a good chance to tie the game shortly after Bergeron's goal when highly touted defensive prospect Jacob Trouba blasted a shot from just inside the blue-line.
However, Bruins centre Gregory Campbell splayed on the ice to block the shot. Campbell broke his right leg in Game 3 of Boston's sweep of Pittsburgh in last year's Eastern Conference final.
Jets coach Claude Noel saw some positive things in the loss, especially with a pair of the team's top prospects.
That included blue-liner Trouba, who's battling for a spot on the roster.
"For a 19-year-old player, he makes good decisions," Noel said of the team's 2012 first-round pick (ninth overall).
"He plays hard, he plays a lot of minutes and makes a lot of good decisions."
Scheifele had some trouble early in the game, but picked it up and contributed with his first goal of the pre-season.
"The goal was a relief for Mark and was a big play at a key time for us," Noel said of the club's seventh overall pick in the 2011 draft.
Winnipeg went up 2-1 on Scheifele's power-play goal at 4:21 of the third period.
Eric Tangradi dumped in a long shot that bounced off the end boards on the glove side of Svedberg. Scheifele picked up the puck, cut in front of Svedberg and flipped a backhand shot past the netminder.
Boston only let the lead stand for two minutes after Matt Fraser stood in front of Pavelec and Spooner's shot went into the net at 6:22.
The Bruins had outshot the Jets 30-27 after regulation.
Notes: Boston scratched veterans Jarome Iginla, Milan Lucic, David Krejci and Zdeno Chara. Winnipeg sat its top line of Andrew Ladd, Bryan Little and Blake Wheeler, who has a minor injury.