NFL preseason can be a cruel mistress when it comes to injury, and the 2015 incarnation is showing no signs of bucking the trend.
The likes of Arian Foster, Mike Iupati, rookies Kevin White and Dante Fowler, Kelvin Benjamin and and Geno Smith have all succumb to serious injuries over the past few weeks. And there are plenty more like them.
Unfortunately for the Miami Dolphins the extensive list has been added to today with news that a key starter for the AFC East franchise is to miss the entire 2015 campaign.
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The news is made all the worse by the fact that this is the second time Delmas has torn his ACL in the space of 10 months having suffered an initial tear against the Ravens late on in the 2014 campaign.
The safety has started 76 games in his six seasons in the NFL when healthy and the Dolphins were hoping the 28-year-old would play an important role in 2015 having regained fitness over the offseason.
In 2014 he recorded 49 tackles and returned an interception 81 yards for a touchdown. His absence on Miami's secondary is a big blow to the franchise's hopes of being one of the league's most dominant defenses.
The injury occurred during Wednesday's joint practice with the Carolina Panthers, the same session in which Panthers star Kelvin Benjamin suffered his own season-ending injury.
Speaking after the practice, Miami head coach Joe Philbin didn't want to be drawn on possible replacements for Delmas but did not that second-year player Walt Aiken had been impressing in camp so far.
Miami fans: How will the injury affect your season, and what do you expect from the Dolphins in 2015? Have your say in the comments below...