Matt Poitras' shift to the wing was one of several takeaways from the first day of the Bruins' on-ice sessions at training camp.

Here are other takeaways from Day 1 of training camp. The first forward lines of camp had newcomer Cam Atkinson on the right side of the second line alongside left wing Brandon Hagel and center Anthony Cirelli, so it appears Atkinson will have an opportunity to earn a top-six role over others such as Mitchell Chaffee and Conor Sheary.

The Bruins won’t take the ice until Thursday, but training camp began on Wednesday with promotional photos and press conferences from Don Sweeney and Jim Montgomery. Naturally, Jeremy Swayman’s unresolved contract situation was the day’s big topic,

The No. 1 roster battle in Boston Bruins training camp likely will be the second-line right wing spot alongside left wing Brad Marchand and center Charlie Coyle. After losing wingers Jake van Riemsdyk,