Full list of 49ers players who ended up not reporting to OTAs

The 49ers have a somewhat concerning large list of players who aren't in attendance for organized team activities.

The San Francisco 49ers are wrapping up their first week of organized team activities, part of the team's offseason workout program that'll gradually ramp up toward training camp later this summer.

OTAs are nothing like camp, though. They're padless, and physical contact isn't allowed, according to the terms of the current collective bargaining agreement between the NFL and players union. And head coach Kyle Shanahan has repeatedly said he doesn't view this particular phase as vital to determining which players survive the cut and make the 53-man roster.

Oh, and OTAs are voluntary, too. That's important.

According to reports from multiple insiders and reporters, a sizable number of Shanahan's well-known players aren't in attendance.

Here's the list and some speculation as to why.

List of 49ers not attending OTAs

• WR Brandon Aiyuk
• WR Jauan Jennings
• RB Christian McCaffrey
• DT Maliek Collins
• RB Christian McCaffrey
• OT Trent Williams
• OL Chris Hubbard

Aiyuk and Jennings both have contractual issues, the latter not having yet signed his restricted free-agent tender.

Aiyuk, meanwhile, is holding out until he receives a contract extension, which reportedly isn't close to being finalized.

As for the rest? Well, it's hard to say why those players aren't at Levi's Stadium.

McCaffrey's absence is a bit troubling, and some speculate that it could be he also wants a significant pay increase after securing the Offensive Player of the Year award last season.

While Williams has little to prove, seeing newcomers like Hubbard and Collins skipping out on OTAs is slightly odd, given the desire to have them jell with their linemates as soon as possible rather than waiting until the next phase of offseason workouts.

Speaking of the next phase, mandatory minicamp will begin on June 4.

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