SANTA CLARA — As Fred Warner basked Sunday in the 49ers’ 2-0 start, he credited their defense’s clutch finishes to this simple task: “Nobody has to be Superman.”

Next up in Sunday’s home opener is Arizona’s Kyler Murray, who’s been a kryptonite of sorts for the 49ers.

OK, he’s only 4-4 against the 49ers, and he’s yet to serve as Arizona’s No. 1-pick superhero from the 2019 NFL Draft. Murray, however, has the Cardinals also off to a 2-0 start, and he’s coming off a season sweep of the 49ers’ last season.

“Our ‘What It Takes’ meeting is very much about him,” and what he brings to the table, how we need to rush him, and how we need to take care of the QB run game and the run game as a whole,” said defensive Nick Bosa, the No. 2 pick in 2019.

“The thing with Kyler obviously is his legs and

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