The Minnesota Twins are reshaping their franchise with an injection of youth and prospects.
Every Thursday for the rest of the season, FOX Sports North will take a closer look at some specific young players — as well as noting others who might be stepping up — measuring, highlighting and evaluating their progress. Please note the glossary of advanced stats at the bottom of the story.
This is the 11th edition of the Young Twins Tracker.
Notable: Kepler was one of six Twins players to homer during a 7-1 win over the Yankees last week. It was just the third time that six different Twins players have homered in the same game, and the first since the Harmon Killebrew era.
DOWN ON THE FARM
Jose Berrios (age 22/Triple-A)
Last week: 2 game (2 starts), 2-0, 0 ER, 15 IP, 4 H, 0 HR, 0 R, 4 BB, 15 K
Season (Triple-A): 11 games (11 starts), 68 2/3 IP 7-3, 2.62 ERA, 1.034 WHIP, 9.6 K/9
Season (MLB): 4 games (4 starts), 15 IP 1-1, 10.20 ERA, 2.133 WHIP, 12.0 K/9
Notable: Berrios pitched his best start of the season last Thursday, striking out nine while allowing just three hits over eight shutout innings. He continued his strong pitching into his start Tuesday, taking a no-hitter into the seventh inning.
Nick Burdi (age 23/Double-A)
Last week: N/A
Season: 3 games (no starts), 1-0, 9.00 ERA, 3 IP, 4 H, 3 R, 0 HR, 1 BB, 1 SO, 1.32 WHIP
Notable: Burdi hasn’t pitched since April 28 and has been on the disabled list since May 5 for a bone bruise on his right arm.
Stephen Gonsalves (age 21/Double-A)
Last week: 1 game (1 start), 5 IP, 6 H, 2 R, 4 BB, 6 K
Notable: Stewart had his longest start of the season on Monday, throwing 102 pitches over seven innings. He’s struggled some since his move to Double-A earlier this month and has seen his strikeout rate dip from 7.7 per nine innings at Single-A to 4.9 per nine innings at Double-A.
Adam Walker (age 24/Triple-A)
Last week: 6 games, 21 AB, 7 H, 4 2B, 0 3B, 0 HR, 2 RBI, 3 BB, 9 SO, 0 SB, .333 BA
Season (Triple-A): 68 games, 271 AB, 52 H, 11 2B, 1 3B, 14 HR, 31 R, 34 RBI, 27 BB, 114 SO, 3 SB, .218 BA
Notable: No home runs for Walker this week, who now sits in second place in the International League with 14 homers.
A glossary of some of the advanced statistics used:
OPS: On base percentage + slugging percentage
OPS+: OPS compared to league average of 100, adjusted to the player’s ballpark
sOPS+: OPS for the split (in our case the last 7 days) compared to the league’s split OPS (100 being average).
BAbip: Batting average on balls in play.
WHIP: Walks plus hits divided by innings pitched.
ERA+: ERA compared to league average of 100, adjusted to the player’s ballpark
FIP: Fielding Independent Pitching. Measures a pitcher’s effectiveness at presenting home runs, walks and hit by pitches while causing strikeouts. The MLB average FIP is the same as the MLB average ERA.
WAR: Wins Above Replacement value. Represents the number of wins the player added to the team above what a replacement player would add (we are using WAR from baseball-reference.com).
Statistics courtesy baseball-reference.com and milb.com