San Francisco 49ers star defensive end Nick Bosa will not play against the Washington Commanders on Monday Night Football (MNF) on October 19, 2026, in Week 6 of the NFL season.
Bosa has been ruled out because of a lingering calf injury and a knee issue, leaving San Francisco without one of its most important defensive players for the nationally televised matchup.
The former NFL Defensive Player of the Year has missed several games while recovering, and the 49ers are taking a cautious approach to his return.
What Injury Does Nick Bosa Have?
Bosa is dealing with a calf injury and a knee issue, according to the team’s injury information.
The defensive end initially suffered the calf injury during a practice warm-up on September 24, 2026. The injury has prevented him from returning to game action.
Although Bosa had hoped to return against Washington, San Francisco’s medical staff determined that he was not ready to play.
Head coach Kyle Shanahan and the 49ers coaching staff have emphasized the importance of allowing Bosa to recover rather than risking a setback.
Nick Bosa Injury Status for Week 6
- Player: Nick Bosa
- Team: San Francisco 49ers
- Position: Defensive End
- Injury: Calf and knee
- Week 6 Status: Out
- Opponent: Washington Commanders
- Game Date: Monday, October 19, 2026
- Potential Return: Week 7, pending medical clearance
How Many Games Has Nick Bosa Missed in 2026?
Monday night’s matchup against the Commanders marks Bosa’s fourth consecutive missed game.
His absence has forced San Francisco to adjust its defensive rotation and rely more heavily on other pass rushers to generate pressure on opposing quarterbacks.
Without Bosa, the 49ers lose an elite edge defender capable of disrupting passing plays, creating sacks and forcing quarterbacks into hurried decisions.
When Will Nick Bosa Return to the 49ers?
Bosa could potentially return in Week 7 against the Atlanta Falcons, although the 49ers have not officially announced a return date.
His availability will depend on how his calf responds to treatment and whether he can participate fully in practice.
San Francisco will likely evaluate his progress throughout the week before determining whether he can return to the active lineup.
If Bosa continues experiencing discomfort or limitations, the team could decide to keep him sidelined longer.
How Does Nick Bosa’s Absence Affect the 49ers Against Washington?
Bosa’s absence is significant for San Francisco’s defense, particularly against Commanders quarterback Jayden Daniels.
Daniels’ mobility creates additional challenges for opposing defensive lines, making disciplined pass rushing and quarterback containment especially important.
Without Bosa, the 49ers must find other ways to pressure Daniels while preventing him from extending plays outside the pocket.
San Francisco’s defensive front will need contributions from its remaining edge rushers and interior defensive linemen to compensate for Bosa’s absence.
What Time Is 49ers vs. Commanders on Monday Night Football?
The San Francisco 49ers host the Washington Commanders on Monday, October 19, 2026, in the NFL’s Week 6 Monday Night Football matchup.
Game Information:
- Matchup: Washington Commanders vs. San Francisco 49ers
- Date: Monday, October 19, 2026
- Kickoff: 8:15 p.m. ET
- Location: Levi’s Stadium, Santa Clara, California
- Week: NFL Week 6
- Game: Monday Night Football
Will Nick Bosa Play in Week 7?
Bosa’s Week 7 status remains uncertain.
While the upcoming matchup against Atlanta represents a possible opportunity for his return, San Francisco has not confirmed that he will be available.
The 49ers will monitor his recovery and practice participation before making a final decision.
Final Takeaway
Nick Bosa is not playing tonight against the Washington Commanders because of a calf injury and a knee issue.
The 49ers defensive star remains sidelined for Monday Night Football in Week 6, marking his fourth consecutive missed game.
Although a Week 7 return against the Atlanta Falcons is possible, Bosa must receive medical clearance before returning to action.
For now, San Francisco will have to face Washington without one of its most impactful defensive players.