“It means he most likely will,” coach Kyle Shanahan said of Jones starting, via David Bonilla of 49erswebzone.com. “We’ll see how Brock does tomorrow. But yeah, Mac’s much better than he was last week, and Brock is doing better than he did last week.”

The 49ers improved to 4-1 with an overtime win in Week 5 and backup quarterback Mac Jones appears ready to take the field again on Sunday.

Jones can continue to earn more incentives, so long as he remains on the field. Of course, the 49ers want Brock Purdy, their long-term investment, to play. But winning isn’t easy in the NFL. Jones has allowed Purdy to be patient with his toe injury and let that fully heal.

Ricky Pearsall was once again a DNP as he continues to recover from a knee injury. Pearsall wasn’t the only receiver who didn’t practice. Marquez Valdes-Scantling was a new addition to the injury report. He has a calf injury. Per Matt Maiocco, Valdes-Scantling will miss a couple of weeks.

Jones is 3-1 as a fill-in starter for San Francisco, has had 142 receiving yards in each of his last two games.

The 49ers have managed to get by just fine in spite of some pretty significant injuries. They currently sit atop the NFC West with a 4-2 record. Jones has been effective in Shanahan's offense in his first four starts.