There’s some bad news for San Francisco 49ers‘ fans and some good news. 

Ahead of the weekend’s game against Seattle Seahawks, the Niners are hoping for star tight end George Kittle to make his way into the starting lineup. However, the San Francisco side could be down two more starting cornerbacks for Sunday’s game as K’Waun Williams will miss the game against the Seahawks with a calf injury and outside cornerback Josh Norman is doubtful with a chest injury, coach Kyle Shanahan informed Friday.

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San Francisco already lost its top cornerback, Jason Verrett, to a season-ending knee injury in the opener.

Norman was hospitalized Sunday with bleeding in his lung and will need to pass tests Saturday to determine whether he can play this week.

In a sign of improvement after hurting his calf in last week’s defeat to Green Bay, Kittle was able to go on the field for a brief run at the start of practice. Kittle’s status for the game is classified as “questionable.”

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“I’m going to do everything I can to be able to be on the field on Sunday,” Kittle said. “If the body says I can go, I’ll be out there.”

Kittle said he’s been dealing with swelling and pain in his calf and Shanahan said he expects to know by Saturday whether Kittle can play.

“The fact that he wasn’t ready to go on Thursday just worried us a little bit more than we were expecting,” Shanahan said. “The fact he could do a little bit today was much more encouraging than what it was yesterday. Hopefully, we have that same result tomorrow.”

Kittle had seven catches for 92 yards last week and has 15 catches for 187 yards this season, which is second on the club.

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Kittle has lost time due to injury the previous two seasons, and San Francisco’s running game has struggled without him.

With starter Raheem Mostert out for the season and backups Jeff Wilson Jr. and Jamycal Hasty injured, the Niners are already weak at running back. Last week, youngster Trey Sermon was the lone halfback who saw action, but fellow rookie Elijah Mitchell is expected to return from a shoulder injury this week.

Mitchell is listed as questionable but has been able to do more in practice this week.

Defensive tackle Javon Kinlaw is also questionable with a knee injury.

With inputs from the Associated Press