Rookie Campbell at first base adjusts to the Red Sox cautiously pushing forward the positional transition

Rookie Kristian Campbell, who was at a slump for the first time in his career, returned to the Red Sox starting lineup on Tuesday, but instead of his usual second base or first base, he replaced rested Ceddanne Rafaela as a midfielder.

On Campbell's first base adaptation, head coach Alex Cora said, "The movement was good, but the intensity of the training gave him some muscle tension, which happened on Sunday. We have to be cautious – learning new positions at the major league level while juggling the midfield, and the physical load needs to be managed scientifically. "

While fans were expecting Campbell to move to first base to make room for promotion to No. 2 rookie Marcelo Mayer (No. 8 in the MLB Pipeline 100 Rookies), Red Sox management was cautious. The team has been looking for a first-base solution since Triston Casas was reimbursed for the season with a rupture of the patellar tendon in his left knee on May 2.

"Infield coach José Flores thinks there's an improvement in Campbell's movement around the base," Kora revealed, "It's not a big problem to roll the ball, but it's the coordination between the bases." On a 10-point scale, he's about 2.5 to 3 points now, and we're going to speed things up but keep our senses. "

As Campbell began training on first base, Meyer's chances of playing on second base in 3A Wooster increased. Speaking to The Worcester Telegraph, Meyer started second base again on Tuesday, saying, "I'm enjoying a new challenge and I'm willing to accept any positional changes for my big league debut." "