© 2014 MLB Advanced Media, L.P. All rights reserved.

8/23/2014 7:34 P.M. ET

Kelly on track for next start; Bogaerts on hold

BOSTON -- The morning after he felt a slight twinge in his right shoulder on a pitch, right-hander Joe Kelly was cleared to make his next scheduled start, on Wednesday in Toronto.

"Joe came in and felt no ill effects from last night," said Red Sox manager John Farrell. "After a battery of tests that he went through after the game last night that didn't reproduce any of the symptoms, it was followed up with him feeling well this morning and he's on target to start in five days."

Shortstop Xander Bogaerts was out of the lineup on Saturday, as the club is still having him go through protocol to make sure he doesn't have a concussion.

Bogaerts was hit on the batting helmet by a Felix Hernandez pitch.

"Xander, any time you get hit in the head like he did last night and removed from the game, he's got to go through a protocol which he's going through today just to see if there's any concussion symptoms," said Farrell. "That's what's taking place this morning."

Brock Holt started at shortstop in place of Bogaerts.

Cespedes made Castillo's choice even easier

BOSTON -- When the Red Sox traded Jon Lester for Yoenis Cespedes on July 31, they did it to acquire a centerpiece run producer in the middle of the lineup.

But a nice perk was that the presence of Cespedes in Boston made the decision easier for fellow Cuban outfielder Rusney Castillo to sign with the Red Sox.

Castillo officially signed a seven-year, $72.5 million deal with Boston on Saturday.

"I think as he said, it's always helpful to have eyes towards what the future clubhouse environment would be," said Brodie Van Wagenen, who represents Castillo. "I think Cespedes' success as well as Puig and Chapman and other players that have come as well, especially [Jose] Abreu of late, it gave him tremendous confidence that he could succeed here.

"But as far as comfort level here, I think that once the Cespedes trade happened, it electrified the opportunity as we were narrowing our choices to a decision, because then it gave a tangible comrade that he could have in this clubhouse."

As Castillo acclimates himself to the Red Sox, he will have Cespedes nearby to give him advice on making the transition to the Majors.

"I actually spoke to Cespedes a little bit about this. He made me aware that it's basically the same game we played in Cuba," said Castillo. "He told me that success here will come down to working and grinding away at a day-to-day level."

Castillo probably a few days from game action

BOSTON -- Though the Red Sox are thrilled to have Rusney Castillo in the fold, it could be a little while before he is cleared to play in games.

"He'll go back to Miami for a couple of days and our hope is to get him over to Fort Myers some time in the next few days and begin workouts again and sort of get him in an appropriate program to ramp him up towards game activity," said Red Sox general manager Ben Cherington.

Before Castillo can actually play for the Red Sox, he needs to have a completed work visa.

"And as soon as that's completed, which hopefully will be sooner rather than later, the sooner that happens, we would start to get him into games this season," said Cherington. "If it happens in time when the Minor League season is still going on, it may start with some Minor League games and then we'll see where we are. Our hope is that all these steps will be completed and we can see him in Major League games at some time in September."

The Minor League season ends on Sept. 1, but Triple-A Pawtucket is on track to make the playoffs, which could give Castillo some more time to get some action there before coming to the Red Sox.

Once Castillo is activated by the Red Sox, he is expected to start in center field.

Red Sox manager John Farrell got to spend some time with Castillo on Saturday.

Does Castillo remind Farrell of anyone in terms of body type?

"Oh gosh, I mean, he's obviously a very strong looking athlete," said Farrell. "Maybe a little bit shorter version of [Yasiel] Puig. You get a similar proportion to that type of body. What that means performance-wise, we'll see. We're confident in the athleticism and the overall strength."

Ian Browne is a reporter for MLB.com. Read his blog, Brownie Points, and follow him on Twitter @IanMBrowne. This story was not subject to the approval of Major League Baseball or its clubs.