Petrovic secured a professional tryout agreement with the Bruins on Sunday, TSN reports.
The Bruins have signed Shen to a three-year entry-level contract.
Heinen signed a two-year extension with the Bruins on Tuesday.
Cehlarik and the Bruins agreed on a one-year, two-way contract Sunday.
Heinen filed for salary arbitration Friday.
The Bruins have signed Fitzgerald to a one-year, two-way contract with an NHL salary cap hit of $700,000.
The Bruins have signed Gaunce to a one-year, two-way deal with an NHL cap hit of $700,000.
The Bruins have signed Lindholm to a two-year deal with an annual salary cap hit of $850,000.
Ritchie agreed to terms on a one-year, $1 million contract with Boston on Monday, Renaud Lavoie of TVA Sports reports.
Lagace signed a one-year, two-way contract with the Bruins on Monday, Renaud Lavoie of TVA Sports reports.
The Bruins have extended a qualifying offer to Fitzgerald.
The Bruins have extended a qualifying offer to Cehlarik.
The Bruins have extended a qualifying offer to Heinen, Matt Porter of the Boston Globe reports.
The Bruins have extended a qualifying offer to Carlo, Matt Porter of the Boston Globe reports.
McAvoy, who is poised to become a restricted free agent, hopes to remain with the Bruins for the long haul, Ricky Doyle of NESN.com reports. "I don't want to go anywhere. (Boston) is the best place on earth," McAvoy recently noted on the team's breakup day following the playoffs. "This is home for me now. I live here in the summer. I love it here. I want to be here forever."
McAvoy was given a qualifying offer by Boston on Tuesday, Matt Porter of The Boston Globe reports.
Kampfer signed a two-year deal worth $1.6 million with the Bruins on Monday, Frank Seravalli of TSN.ca reports.
Olson was drafted 92nd overall by the Bruins at the 2019 NHL Entry Draft on Saturday.
Beecher was drafted 30th overall by the Bruins at the 2019 NHL Entry Draft on Friday.
The Bruins plan to retain their rights to Forsbacka-Karlsson by making him a qualifying offer, Eric Russo of the team's official site reports.
Bjork has progressed well since undergoing shoulder surgery in January, Eric Russo of the Bruins' official site reports. "Anders is doing really well from a recovery standpoint, had his shoulder, the same shoulder, done again, but has taken the necessary time,"GM Don Sweeney noted Monday of the young forward, who has been slowed by shoulder injuries over the past two seasons.
Wagner confirmed Monday that he underwent surgery on his arm to repair a displaced ulna.
Chara will have a procedure on his elbow to clean up loose fragments, per GM Don Sweeney.
According to general manager Don Sweeney, Nordstrom has a fracture in his foot that will require testing.
Acciari played through a broken sternum that he suffered during the Bruins' second-round playoff series versus Columbus.