Just when we thought there was some positive momentum (because of no holdout) between the San Francisco 49ers and receiver Jauan Jennings regarding a new contract, the situation met an unfortunate roadblock.

Amid contract talks with the San Francisco 49ers, wide receiver Jauan Jennings had a wrench thrown in his plans of proving his worth during training camp.

San Francisco 49ers wide receiver Jauan Jennings suffered a calf injury during Sunday's practice—the same issue that sidelined him late in the offseason program.