Harrison was optioned to Triple-A Sacramento on Friday, Evan Webeck of The San Jose Mercury News reports.

EDGE Analysis

Harrison has struggled over his last three starts, surrendering 12 earned runs across 14.2 frames. Danny Emerman of KNBR 680 San Francisco also reports that Harrison had lost velocity in his last outing, a factor that may have played a part in the team's decision to take him out of the big-league rotation. Barring an injury to a pitcher, Harrison will have to spend at least 15 days in the minors. Ross Stripling (back) was activated in the corresponding move.

Harrison did not factor into the decision Wednesday, allowing five runs (three earned) on seven hits and one walk over four innings against the Guardians. He struck out three.

EDGE Analysis

It was a disastrous first inning for Harrison as the lefty surrendered a walk to open the frame, followed by a two-run homer to Jose Ramirez in the next at-bat. Another two runs would come across for Cleveland in the inning, though they weren't charged to Harrison on account of a fielding error by Casey Schmitt. The rookie hurler has now allowed at least three earned runs in each of his last three starts, yielding six home runs and 18 hits over that stretch. He currently holds a 7.36 ERA this month after maintaining a 1.86 ERA through two August starts.

Harrison allowed four runs (three earned) on five hits and two walks while striking out five over five-plus innings in a no-decision versus the Rockies on Friday.

EDGE Analysis

The Rockies got to him for three runs in the second inning and Nolan Jones added a solo home run in the sixth to end Harrison's night. This was progress from Harrison's last starts, but it still wasn't a particularly commanding effort. He's struck out at least five batters in all four of his starts while posting a 4.87 ERA, 1.28 WHIP and 26:7 K:BB across 20.1 innings. The rookie is projected for a home start versus light-hitting Cleveland next week, which should also allow him to avoid a visit to Coors Field when the Giants and Rockies clash again next weekend.

Harrison (1-1) allowed six runs on six hits and two walks while striking out five over 5.2 innings, taking the loss Saturday versus the Padres.

EDGE Analysis

Harrison yielded three solo shots over the first two innings and then a three-run home run to Garrett Cooper in the sixth. Harrison has had mixed results through his first three starts, posting a 4.70 ERA, 1.24 WHIP and 21:5 K:BB through 15.1 innings. Considering he gave up just 10 home runs over 65.2 innings with Triple-A Sacramento in the hitter-friendly Pacific Coast League, Saturday's outing seems like an anomaly. The southpaw is tentatively lined up for a home start versus the Rockies next week.

Harrison (1-0) allowed three hits and two walks while striking out 11 over 6.1 scoreless innings to earn the win Monday over the Reds.

EDGE Analysis

Harrison was fine in his debut in Philadelphia last Tuesday, but he was dazzling in his home debut against a formidable lineup. He allowed just two runners to get into scoring position on his watch. Harrison has a 16:3 K:BB over 9.2 major-league innings and should be able to stick in a less-than-encouraging Giants rotation. He's tentatively projected for a road start in San Diego this weekend.

Harrison's next start for the Giants is expected to come Monday against the Reds, Danny Emerman of KNBR reports.

EDGE Analysis

Harrison would be on turn to pitch Sunday, but with Atlanta featuring a right-handed heavy lineup, the rookie is expected to be pushed back a day. Manager Gabe Kapler hasn't officially named starters for Sunday or Monday yet, but it sounds like it will be a bullpen day Sunday before Harrison takes the ball Monday.

Harrison did not factor into the decision Tuesday, allowing two runs on five hits and one walk over 3.1 innings against the Phillies. He struck out five.

EDGE Analysis

The 22-year-old southpaw was greeted harshly in his MLB debut, as Bryce Harper took him deep to right for a first-inning, two-run homer Tuesday. However, Harrison demonstrated his strikeout potential, with each of the first five outs he recorded against Philadelphia coming via the punchout. The strikeouts come as no surprise given he led all of minor-league baseball with 14.5 K/9 prior to his promotion, but his control issues (6.4 BB/9) were the main culprit in limiting Harrison's overall production. He completed five innings just one time in his 21 minor-league starts this year. If he sticks around in San Francisco, the rookie will undoubtedly rack up big strikeout numbers, although his inefficiency and limited pitch counts suggest that quality starts and wins may be tough to come by. Harrison tentatively lines up to face the Reds at home early next week.

Harrison tossed three scoreless innings with one hit allowed, three walks and five strikeouts Thursday for Triple-A Sacramento.

EDGE Analysis

This was Harrison's best start of the year, but that's damning with faint praise, as he still walked a batter per inning and only recorded nine outs. On the season, he has 13 walks and 12 strikeouts and has not gone deeper than 3.1 innings.

Harrison was reassigned Tuesday to the minor-league side of Giants camp, Alex Pavlovic of NBC Sports Bay Area reports.

EDGE Analysis

Harrison had been lit up for eight earned runs through 3.2 innings of work this spring in Cactus League play, but he ranks as one of the top pitching prospects in all of baseball and could feasibly push to make his MLB debut in late 2023. He is 21 years old and doesn't turn 22 until August.

Harrison will begin the 2023 season in Triple-A Sacramento, Alex Pavlovic of NBC Sports Bay Area reports.

EDGE Analysis

The 21-year-old lefty spent the majority of last season with Double-A Richmond, where he put up a 3.11 ERA and 1.18 WHIP through 84 frames alongside a 13.61 K/9. Harrison has established himself as one of the best left-handed pitching prospects in baseball, and he could be in line to make his major-league debut sometime this season if he continues to perform at a high level in Triple-A.