Johnson (infection) is building up arm strength, and manager Alex Cora said the left-hander could throw a session Sunday or Monday, Zachary Silver of MLB.com reports.

EDGE Analysis

Johnson has been on the shelf since June 29 with an intestinal issue and needs to add stamina to his arm. "He's good arm-wise," Cora said. "He just needs the repetitions. We're not very worried about building him up, it's just a matter of building him up, that's about it. He should be with us as soon as we feel he's comfortable as far as the innings and we're extending him long enough that he should help us." Johnson is without a firm timetable, but he could face a shorter rehab assignment if the Red Sox transition him to the bullpen. Since he landed on the injured list, Boston added starter Andrew Cashner, so Johnson is no longer needed for multiple innings every fifth day.

Johnson, who was placed on the injured list Saturday, is dealing with an intestinal issue but is expected to make a full recovery, Pete Abraham of The Boston Globe reports.

EDGE Analysis

This was labeled as a non-baseball medical matter when he was first placed on the IL. Johnson should be considered out indefinitely, although the Red Sox say he should be able to return at some point this season. Hector Velazquez could step into Johnson's role as a spot starter.

Johnson was placed on the 10-day injured list with a non-baseball-related medical matter, Chris Cotillo of MassLive.com reports.

EDGE Analysis

He has not pitched since June 22 and will now be out indefinitely with this undisclosed issue. The Red Sox say he is expected to return at some point this season. Hector Velazquez (back) was activated from the injured list in a corresponding move.

Johnson is expected to work out of the Boston bullpen this week while the Red Sox get by with a four-man rotation due to off days Thursday and Friday, Ian Browne of MLB.com reports.

EDGE Analysis

Since he last pitched Saturday, Johnson wouldn't be available until the upcoming weekend's two-game series with the Yankees in London on account of the back-to-back off days. Rather than slotting Johnson back into the rotation at that time, however, the Red Sox will simply have Rick Porcello and Eduardo Rodriguez pitch Saturday and Sunday, respectively, on five days' rest. After the London trip, the Red Sox can reset their rotation again following another off day July 1, so Johnson may not be needed to step back in as the club's fifth starter until July 6 in Detroit.

Johnson gave up one unearned run on four hits and no walks across five innings during Saturday's 8-7 loss to the Blue Jays. He struck out four and did not factor in the decision.

EDGE Analysis

Johnson exited the game with a 6-1 lead and seemed like a sure bet to receive the win, but the bullpen surrendered seven runs across the seventh and eighth innings. The 28-year-old figures to remain in the starting rotation in place of Nathan Eovaldi (elbow) for the time being, but it's not clear when his next start will come with the Red Sox having a pair of off days next week ahead of the two-game set in London against the Yankees next weekend.

Boston manager Alex Cora confirmed Johnson is the team's fifth starter, Michael Silverman of the Boston Herald reports.

EDGE Analysis

As Johnson ramped up during a rehab stint, having him fill in for the injured Nathan Eovaldi (elbow) was widely presumed to be the Red Sox's plan,. Johnson was pulled after three innings and 70 pitches Sunday against the Orioles, and while Cora is sticking by him a starter, the manager expects improvement. "I think [Sunday] he was OK," Cora said. "Like I said, rehab starts, big-league starts are way different. He was OK. Hopefully for his next one he can do better." Meanwhile, Eovaldi has resumed throwing after a setback and is starting his rehab from scratch. Johnson could be the fill-in starter through the All-Star break.

Johnson allowed one run on five hits and two walks while striking out two over three innings Sunday in a no-decision against the Orioles.

EDGE Analysis

Johnson gave up just one run in the third inning on an infield single, but he was pulled in the fourth after the first two batters of the inning reached on singles. He struggled to consistently pound the strike zone, hurling just 41 of 70 pitches for strikes on the day. Despite his struggles, the 28-year-old is expected to remain in the starting rotation until Nathan Eovaldi (elbow) is cleared to return.

Johnson is expected to start Sunday against Baltimore and every fifth day beyond that until Nathan Eovaldi is ready to return from an elbow injury, Christoper Smith of MassLive.com reports.

EDGE Analysis

Johnson was activated off the injured list Friday after his own ordeal with an elbow injury. The Red Sox hope he can stabilize Eovaldi's spot in the rotation after a string of starts that went to Ryan Weber, Hector Velazquez, Josh A. Smith and Darwinzon Hernandez. "Most likely he'll be the guy," Red Sox manager Alex Cora said about Johnson. "Hopefully now all the way to the end of the All-Star break it's a regular schedule. We have our guys lined up every five days and it's going to benefit everybody, I believe." The left-hander last pitched June 9 for Triple-A Pawtucket, throwing 62 pitches over four innings, so he's stretched out enough to potentially throw five innings Sunday. Eovaldi suffered a setback during his rehab but is set to resume throwing shortly, and it looks like the Red Sox will keep him on rehab through the All-Star break.

Johnson (elbow) was activated off the 10-day injured list Friday as expected, Chris Cotillo of MassLive.com reports.

EDGE Analysis

Johnson has been sidelined with elbow inflammation since early April and makes his return to the majors after a six-game minor-league rehab stint. It's not yet clear if the left-hander will be used as a starter or a reliever, though it's worth mentioning the Red Sox will require a fifth starter Sunday at Baltimore.

Johnson (elbow) will be activated from the 10-day injured list Friday, Chris Cotillo of MassLive.com reports.

EDGE Analysis

Johnson has been on the shelf since April 6 with elbow inflammation. With his 30-day rehab window ending Thursday, the southpaw will rejoin the Red Sox prior to Friday's series opener in Baltimore. It remains to be seen whether Johnson will return as a starter or reliever, though it's worth noting that Boston needs a fifth starter Sunday. Johnson posted a 6.75 ERA, 1.91 WHIP and 15:8 K:BB in 14.2 innings across six rehab appearances, though he allowed just two runs and struck out seven batters in seven innings his last two times out.