Brock Holt, of the Boston Red Sox public service, is on the disabled list because his 2-year-old son looked him in the eye.
The Red Sox announced on Saturday that they had placed Holt "on the 10-day list of injured with cornea with right eye," without further explanation.
The Diamondbacks gave the Red Sox their third consecutive loss, defeating Boston 2-8, matching the worst start through 10 games in franchise history.
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But Holt later confessed to the reporters, admitting that he was not injured during a play on the field.
"Actually, it was a play at the hotel," Holt said, as cited in the Boston Globe. "It was the morning of Inaugural Day, I went to find Griff to get out of bed, take him back to our bed and one of his nails made me feel good."
Holt continued to try to play despite his poor vision and went only 1-for-16 from the plate after debuting in the season two days after the accident with his son.
"It's not fun, but it's fun," Holt said. "[Griffin] He walks around and tells everyone that he poked me in the eye. "
The Red Sox called Tzu-Wei Lin from Triple-A Pawtucket to replace Holt.
Boston also placed reliever Brian Johnson in the 10-day IL with inflammation of the left elbow and called right-back Marcus Walden on Saturday.