While the loss of safety Tyrann Mathieu is a big one, he has not been completely lost yet and his time off the field might not be a terribly long time. When the Arizona Cardinals returned to practice for the first time since Mathieu's season-ending injury, Mathieu was out there with the team, wearing a knee brace and throwing a football around with the defensive backs.
So, at least in practice, the team will still have Mathieu's emotion around for a bit.
There was also good news regarding the timeline of his return. As reported by Darren Urban, head coach Bruce Arians said Mathieu's ACL tear was "clean." That is much different than the knee injury he suffered in 2013, in which he tore his ACL and LCL. In that surgery, his knee was shredded. This time around, it is a simple tear.
Arians said Mathieu could be back by OTAs.
In an interview on SiriusXM NFL Radio, he said "the nice this is they're talking about him running around in OTAs and being ready to go."
It doesn't sound like he will be fully cleared for all football activities, but there is the implication he could be ready to go once the season starts.