Seneca Wallace stepped on the practice field for the first time with the San Francisco 49ers on Friday as the most experienced quarterback on the roster.
Whether the nine-year veteran still has a job with the team in two weeks depends on how quickly and how well he can pick up and fit into a system friendly to his skills.
Wallace will get that opportunity immediately. Coach Jim Harbaugh said he expects Wallace, signed by the 49ers on Thursday, to play in Sunday's preseason game against the Minnesota Vikings.
Harbaugh said all five quarterbacks on the San Francisco roster are likely to see action against the Vikings as the 49ers attempt to sort out their uncertain backup situation behind starter Colin Kaepernick before the regular season begins.