Castro, the Twins' best fielding infielder, was placed on the DL Saturday because of a patella tendon strain in his left knee suffered running the bases in Seattle on Wednesday.
Jones, the team's top run producer, hasn't played since that Wednesday game, either, because of an oblique strain on his lower right side.
The Twins entered the week anticipating they can keep Jones off the DL, which is significantly good news for a team with the worst batting average in the majors since the all-star break. But the lefty hitting Jones still was expected to miss at least Monday's series opener against the major-league front-running Chicago White Sox -- and possibly the whole series.
If that's the case, it would put Jones out for a full week.
Throughout most of the weekend series at Oakland in which the Twins scored just five runs and hit just .203, manager Gardenhire had just two moves off the bench available to him because he was carrying both Castro and Jones on the active roster.
"It's not the time of year to play short or the teams to play against to play short," Gardenhire said.
Jones, who leads the team with 17 home runs and 57 runs batted in, suffered an oblique strain to his right side during an at-bat in Wednesday's 14-inning victory at Seattle, and Castro suffered a patella strain in his left knee later in the 10th inning of the same game.
Both were held out of pregame activity before Friday's game and were to be held out of Saturday's pregame work as well.
And both could wind up on the disabled list by the time the team heads to Chicago for a three-game series against the White Sox starting Monday.
"You win a 14-inning game and lose two players. That's tough," manager Ron Gardenhire said. "And it's not like I can just DL them. You've got to give them a look for a couple of days."
The team already is playing without CF Torii Hunter, who led the team in homers and RBIs when he broke his ankle July 29.
"It's not the time of year to play short or the teams to play against to play short," Gardenhire said, referring to the A.L. West-leading Athletics and the A.L. Central-leading White Sox.
The injuries meant the Twins had just three players on the bench for Friday's game -- and for practical purposes two, because one was backup C Mike Redmond, who can't be used without risking a catching crisis with even a minor injury. Both extra players are rookies: 1B/3B Terry Tiffee and SS Jason Bartlett.
Ford, who was also out of the lineup Wednesday, bunted poorly enough after the first two batters of the inning reached base in a scoreless game that rookie RHP Felix Hernandez was able to throw out the lead runner on the play, squandering the Twins' lone, best scoring chance in a game they lost 1-0.
That Ford had issues with the play, prompting manager Ron Gardenhire to have words with him afterward merely served to underscore the biggest issue facing a team that has plummeted out of contention since the All-Star break.
It's about youth, confidence, playing smart at the major league level and understanding how to accomplish the basics.
"It's not that they're not trying," Gardenhire said of his youthful lineup. "They just haven't got it yet."
Team officials tried to protect Ford, using a bothersome hip flexor as a contributing factor to the benching. But it's clear it had far more to do with Tuesday's play and his reaction to it.
"It's been addressed. We discussed it," Gardenhire said. "We took care of it."
"The most important thing is it's over with," Ford said.
But not so the growing pains of a Twins' season that has come to be defined by one-run losses and countless missed scoring chances.
BY THE NUMBERS: 8 -- Consecutive winless road series for the Twins until beating the red-hot Oakland A's two of three over the weekend in Oakland. Their previous series win was June 7-9 at Arizona.
QUOTE TO NOTE: "Two win two out of three here and score only five runs in the series -- that's pretty good." -- Manager Ron Gardenhire, after the Twins slowed down the hottest team in baseball, winning two of three at Oakland despite being outscored 6-5 in the series -- winning a 1-0 game Friday and 2-1 Sunday after being one-hit through eight.
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