AROUND THE HORN

All-Star Game: Designated hitters J.D. Martinez and Garrett Cooper, and Giants pitcher Carlos Rodon were added to the All-Star rosters for next week’s game at Dodger Stadium, MLB announced Tuesday. Martinez replaces injured Astros slugger Yordan Alvarez and becomes the third Red Sox player to land on the American League roster along with Xander Bogaerts and Rafael Devers. Cooper take the spot of reigning National League MVP Bryce Harper, who’s out indefinitely with a fractured thumb that required surgery. Cooper gives the Marlins three All-Stars as he joins teammates Sandy Alcantara and Jazz Chisholm Jr. Rodon (8-5, 2.70 ERA) was selected to replace Brewers closer Josh Hader, who has family commitments . ... The Cardinals’ Albert Pujols, Phillies’ Kyle Schwarber, Braves’ Ronald Acuña Jr. and Nationals’ Juan Soto will join two-time defending champ Pete Alonso of the Mets in the Home Run Derby on Monday. There were three more slots left to be filled as of Tuesday afternoon.

Phillies: Rob Thomson became the first Canadian to manage a major league game in his home country when he led the Phillies against the Blue Jays on Tuesday night. “It’s great to be home,” Thomson said before batting practice. “I love coming back here. I love the ballpark, especially when the roof is open. I have a lot of family and friends here. It means a lot.” Among those friends were eight former teammates from the 1984 Canadian Olympic baseball team, for whom the 58-year-old Thomson was catcher. “I guess they rented out a suite,” Thomson said. “I don’t know how they got the money. It’ll be nice to see them, too.” Thomson is from Sarnia, Ontario, a city on the Michigan border about 200 miles west of Toronto. He was promoted from his role as bench coach to interim manager after Joe Girardi was fired on June 3. That made Thomson the first Canadian-born manager in the big leagues since the Pirates’ George Gibson was fired in June 1934. The Phillies were 24-12 under Thomson ahead of the game.

Mets: In what he called “a measuring-stick win” in the opener of an NL East showdown, Max Scherzer was the difference-maker for the New York Mets. Scherzer pitched seven strong innings, Luis Guillorme homered and drove in two runs, and the Mets beat Max Fried and the Atlanta Braves 4-1 on Monday night. “They’re a great team over there and you want to come out and play your best baseball,” Scherzer said. The right-hander was very close to his very best. Thanks to Scherzer’s outstanding performance, the first-place Mets stretched their division lead over the Braves to2 ½ games. “It makes it great when you have the guy behind you throwing zeros,” Guillorme said. “Everybody knows one or two might be enough when he’s in the game.” Pete Alonso also had two RBIs and Scherzer (6-1) gave up only three hits, including Austin Riley’s 24th homer in the seventh. That cut the Mets’ lead to 2-1, but Guillorme answered with his homer off Darren O’Day in the eighth. All-Star closer Edwin Diaz, pitching for the third straight day, struck out the side in the ninth for his 19th save.