© 2013 MLB Advanced Media, L.P. All rights reserved.

8/15/2013 8:36 P.M. ET

Bochy gives expanded replay thumbs-up

WASHINGTON -- Giants manager Bruce Bochy welcomed Commissioner Bud Selig's announcement Thursday of an expanded video review process that would begin next season.

Managers will be allowed one challenge through a game's first six innings and two from the seventh inning until the game's completion. A crew at MLB.com's headquarters in New York City will review each challenged call.

"I think it can be done in a way where it's not slowing the game down," Bochy said.

Bochy said that he wanted to study the plan, which still faces approval from club owners in November, before making a final judgment. Bochy intends to discuss the proposal with Giants president Larry Baer, who attended Wednesday's replay presentation.

Still, Bochy's initial reaction was positive.

"I do like the fact that we're going to have the chance to review some plays," he said. "If this happens, I think it'll be good for the game."

Bochy surmised that umpires will approve of this system, pointing out that they don't want to live with the burden of having made an incorrect call.

"They're doing the best job they can," he said.

Bochy noted that a more extensive replay system could enhance fan interest, since spectators seem to get excited over the current system of video reviews of home run calls.

Rosario hurt by line drive off sternum

WASHINGTON -- Giants right-hander Sandy Rosario left Thursday's game against the Washington Nationals after being struck in the sternum by Adam LaRoche's seventh-inning line drive.

Manager Bruce Bochy said the rookie reliever, who sustained a bruise, could be sidelined for at least a couple of days.

"I didn't have time to think. I didn't have time to react," said Rosario, 27. "I couldn't breathe for about four or five seconds."

Leading off the seventh, LaRoche connected solidly with a 1-2 pitch from Rosario, who clutched his chest in obvious pain but picked up the ball after it caromed off him and threw to first base for the out.

Rosario then sank to his knees in agony and remained kneeling as he was tended to. A concerned LaRoche lingered near the first-base line, watching the scene at the mound intently. Rosario soon rose and left the field, flanked by members of the Giants' athletic training staff.

How did Rosario maintain enough presence of mind to make the play?

"Right when I opened my eyes, I saw the ball right in front of me," he said.

Rosario thus contributed one out to the 5 1/3 innings of shutout relief turned in by the Giants' bullpen in their 4-3 victory.

Left-hander Javier Lopez replaced Rosario, who has made a club-high 29 appearances since being recalled from Triple-A Fresno on June 12.

Pagan to start rehab stint Friday in Arizona

WASHINGTON -- Center fielder Angel Pagan will test his left hamstring Friday when he joins the Giants' Rookie-level Arizona League squad for his first Minor League injury rehabilitation game since being injured.

Manager Bruce Bochy said Thursday that Pagan will play three innings. The Giants believe that Pagan, who was expected to be sidelined for 10 to 12 weeks when he underwent surgery June 25, could resume big league competition by Sept. 1.

Pagan, 32, played 46 games before being shelved and hit .262 with three home runs, 24 RBIs and 30 runs. In his absence, the Giants have struggled to derive ample production from the leadoff spot in the batting order. The switch-hitter signed a four-year, $40 million contract during last offseason.

Cain eyeing another 200-inning season

WASHINGTON -- Giants right-hander Matt Cain has a strong chance to maintain his streak of 200-inning seasons. But a few factors must work in his favor.

Cain, who has pitched 146 innings this season, has reached or exceeded the 200-inning mark for six consecutive years. The only other pitchers to build such streaks since the franchise moved to San Francisco in 1958 are Hall of Famers Juan Marichal (10 in a row, 1962-71) and Gaylord Perry (six, 1966-71).

Cain, who has made 24 starts, has averaged slightly more than six innings per outing. Whether he reaches 200 innings could depend on the number of starts he makes through the rest of the season. Barring weather-induced postponements, Cain could receive as many as nine more starts. If he makes eight more starts, he obviously must pitch deeper into each game to amass 200 innings.

The 200-inning plateau remains meaningful to Cain.

"It says that you're durable," he said.

But, he added, "That's not my main goal. My main goal is to finish the season and keep throwing the ball well."

By accomplishing that, totaling 200 innings should be a byproduct.

"You're always pushing to get 200 innings," said Cain, a three-time National League All-Star. "You want to go out there for as long as you can, but sometimes the game doesn't let you do that. It's [a matter of] trying to give your team a chance to win. If [pitching 200 innings] happens, it happens."

Chris Haft is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.