49ers TE George Kittle (groin) active against Steelers - ESPN
At least one Steeler wants to see George Kittle play for the 49ers Sunday
George Kittle injury update: 49ers tight end expected to play in Week 3 - DraftKings Network
49ers season derailed by QB injuries in NFC title game - The San Diego Union-Tribune
TE George Kittle out for 2nd straight game for 49ers
Is George Kittle playing this week? Latest 49ers vs. Steelers injury update
Is George Kittle playing this week? Latest 49ers Week 1 injury updates vs. Steelers
George Kittle's groin injury has lingered, keeping him out of practice this week - NBC Sports
49ers injury report: George Kittle practices for 49ers before Week 1