Head coach Sonny Dykes and his Cal football team begin training camp for the 2014 season Monday. Here are five key questions the Bears hope to answer during camp:

1. Who will be the starting running back?

Daniel Lasco (67 carries, 317 yards, two TDs rushing in 2013, plus 11 receptions for 78 yards) and Khalfani Muhammad (74-445-4 and 14-187-1) are fighting for the spot in the wake of Brendan Bigelow's departure to the NFL after his junior season.

Lasco is listed No. 1 on the depth chart, but Muhammad is a big-play threat (6 yards per carry, 13.4 per catch and 21.9 per kick return) who is sure to get his share of carries regardless of whether he's starting.

2. Who will block for that starting running back?

Injuries forced numerous shifts in the offensive line throughout last season, which led to inconsistent play up front. It will be crucial for the unit to become more cohesive in camp to help define the lineup for the Aug. 30 opener at Northwestern.

Two particularly important players will be center Chris Adcock and right tackle Jordan Rigsbee. Dykes said he'll have to bring both players along slowly in camp as Adcock recovers from a knee injury and Rigsbee returns from a sprained ankle he suffered in the spring.

3. What will happen with a healthy Mustafa Jalil at defensive tackle?

Jalil was a high-profile recruit in 2010, receiving offers from USC and Arizona State before committing to Cal. But injuries have limited Jalil to 20 games in three seasons.

Dykes said the team will need to monitor Jalil's workload during camp. He's listed as a second-string defensive tackle, but that could change if he stays healthy through the month.

4. What impact can Trevor Davis make at wide receiver?

Davis transferred from Hawaii, where he had 45 catches for 601 yards and five touchdowns in his freshman and sophomore seasons. After sitting out last year, Davis is listed as a starter at a loaded position.

He is a big-play threat who could cement himself as a top target for the Bears in camp.

5. Can they stay healthy?

This is as big a question as any. The Bears were plagued with injuries last season (a combined 138 games missed by injured players), and it will be crucial for them to avoid injuries before the opener.