The 49ers' 2018 season begins, in effect, on Monday with the start of their offseason program.
The first two weeks are limited to weight-room and conditioning with strength coach Ray Wright and his staff. The program eventually will evolve into on-field work with coaches and then into OTA practices in May and June.
All of the sessions are voluntary, but if you're a young player with an opportunity to move up in the pecking order, you'll likely want to be on hand every day. Among the most prominent players in that category:
WR Kendrick Bourne.