"Obviously, the team has been playing well," Bour said. "I was just happy to come in and make an impact right away, and just help the team win."
The return of Bour, who had been out since June 5 with a left ankle contusion, gives the Marlins another long ball threat. He now has 17 home runs, tying Giancarlo Stanton and Marcell Ozuna for the team lead.
Miami is the only club in the Majors with three players with 17 or more homers.
To make roster space for Bour, the Marlins optioned catcher Tomas Telis to Triple-A New Orleans.
Bour's ability to turn on a 96.7-mph fastball from a left-hander was a good sign because it showed he hadn't lost his timing.
"I didn't think he would," Marlins manager Don Mattingly said. "He had enough at-bats where 10 days wasn't going to be too much."
Bour bruised his left ankle while awkwardly touching first base on a double he hit on June 3 in Edinson Volquez's no-hitter against the D-backs. The next day, Bour made a pinch-hit appearance and was placed on the DL on June 6, retroactive to June 5.
A year ago, Bour missed two months with a right ankle injury. This time, the club was much more proactive, not taking any chances with their power-hitting first baseman.
"We did the right thing, got in the boot right away," Bour said. "Allowed the time to heal, and the progression to get back playing again went on schedule, so here we are."
Bour is having an All-Star-worthy first half, sporting a slash line of .295/.372/.601 with 41 RBIs after going 1-for-3 with a walk on Friday. Tyler Moore replaced him on a double-switch in the eighth inning. Mattingly said Bour is fine, but he will get Saturday off and should be ready Sunday.
"We talked about playing today and having tomorrow off, and playing Sunday," Bour said.
• Braxton Garrett isn't the only highly rated Marlins prospect dealing with a left elbow issue. Class A Greensboro right-hander Jordon Holloway, rated by MLBPipeline.com as the organization's No. 14 prospect, is scheduled to undergo Tommy John surgery to repair a torn ulnar collateral ligament. Garrett, the club's No. 1 prospect, is scheduled to visit Dr. James Andrews either Monday or Tuesday, and the lefty could also have the procedure.
• Third baseman Martin Prado (right hamstring) and shortstop Adeiny Hechavarria (left oblique strain) started their rehab assignments at Double-A Jacksonville. The two could get about a week of games before being reinstated.
• Lefty Wei-Yin Chen (left elbow) has started a preliminary throwing program, but he may not be ready to return for at least a month or more.