Josh Jacobs' frustration with his ongoing contract situation appears to be boiling over.

The Las Vegas Raiders placed the $10.1 million franchise tag on Jacobs in March, but the two sides have yet to agree on a long-term deal.

"The one that nobody's talking about is Josh Jacobs, the reigning NFL rushing champion. At this point if there's not a long-term deal, I don't anticipate Josh Jacobs being there at the start of training camp and I don't know that he shows up Week 1," NFL Network's Tom Pelissero said during an appearance on the Rich Eisen Show.

However, ESPN's Jeremy Fowler reported Tuesday on SportsCenter that the Raiders are "pretty hopeful" that Jacobs will report to training camp this summer even if he doesn't land a long-term agreement: