I remember exactly where I was on July 8, 2010. I was at Park Tavern watching the Twins play Toronto when this happened:
"Might have had the wind knocked out of him," Bert Blyleven said, hopefully. "Justin's walking off on his own, which is always a good sign."
Except when it isn't.
That was the night when Morneau's career with the Twins changed for good. He was sidelined by a concussion for the rest of the season and never regained the MVP form that has marked the prime of his career, which came to a crushing halt that night against the Blue Jays. That half-season (81 games) ended with 18 home runs, a .345 batting average and an OPS of 1.055.
Morneau struggled, had a couple of slightly better-than-average seasons with the Twins (based on OPS+ data, anyway) and was traded to Pittsburgh in 2013. From there, he went to Colorado, where he won the National League batting title last season.
Then, earlier this month, he suffered another concussion diving for a ball against the Los Angeles Angels. Again, it wasn't immediately obvious what had happened.
Morneau was put on the seven-day disabled list because of the concussion-like symptoms[ last weekend and it doesn't sound like he's coming off this weekend.
"It's probably not just (seven days)," manager Walt Weiss told the Denver Post on Thursday. "I'm not going to say it's going to be a whole lot longer than that, but he's not going to be in the lineup in two days."