High Dimension

49ers ride Christian McCaffrey’s historic day to overtake Rams, 31-14

INGLEWOOD — A day after the San Francisco 49ers traded multiple draft picks for Christian McCaffrey, general manager John Lynch said they essentially received multiple players in return.

“He’s so much more than a running back,” Lynch said. “He’s an incredibly accomplished receiver.”

What Lynch Left Out: The double threat also has a rarely used third dimension.

The All-Pro known for his legs and hands showed his arm in the San Francisco 49ers’ 31-14 win over the Rams on Sunday, while doing many of the other things he’s best known for.

In fact, McCaffrey, in his second game with the 49ers, gave his new team a shrewd look for giving up a total of four draft picks in making history: he became the first player in all 77 seasons of the franchise to have a passing, rushing and receiving touchdown. in the same game.

And McCaffrey, who had a 34-yard field goal pass, a bounding 9-yard touchdown catch and a 1-yard touchdown run that set up his 24-yard springboard on the previous play, became the fourth player in the NFL since 1970 to pull off such a hat trick.

Yes, the 49ers were missing two of their top three receivers on Sunday, missing two starting linebackers and were without a pair of defensive tackles among other key elements, but they won because they had McCaffrey.

The 49ers gave a lot for it and McCaffrey gave them a lot back in their eighth straight regular season win over rival NFC West that snapped a two-game losing streak and improved their record to 4- 4.

McCaffrey rushed for 94 yards, 149 total yards, a team-best eight catches and was at his best in the biggest moments.

After the Rams (3-4) took a 7-0 lead on a 17-play, 88-yard drive that lasted nearly 10 minutes, McCaffrey responded on the next drive by tying the game with his 34 touchdown yards in stride. pass to Brandon Aiyuk, a play that started when he caught a fullback from quarterback Jimmy Garoppolo.

Then McCaffrey provided the go-ahead score. The 49ers took their first lead, at 17-14, late in the third quarter when McCaffrey went high to catch Garoppolo’s 9-yard pass to the right corner on 3rd-and-3.

Finally, McCaffrey provided what could be considered the touchdown. The 49ers pushed their advantage to 24-14 with about 12 minutes to go with McCaffrey’s 1-yard dive that was preceded by his 24-yard dash around the left end.

• McCaffrey was so good that he at least partly masked what would have been widely referred to as Garoppolo’s showpiece performance.

Garoppolo completed 21 of 25 passes for 235 yards with two touchdowns (132.5 passer rating). Garoppolo’s completion percentage (84) was the second highest of his 53-start career.

With the 49ers leading 24-14, Garoppolo provided the exclamation point on a five-play, 73-yard drive midway through the final quarter.

Three plays after a 56-yard completion off tight end Ross Dwelley, he found tight end George Kittle for a 7-yard touchdown at 3rd and on base.

• The 49ers’ passing rush wasn’t as disruptive as it had been when they had a season-high seven sacks against the Rams in a 24-9 sack on October 3.

But after being nearly nonexistent in the first half (zero sacks), he reappeared on the Rams’ first two drives in the second half as the 49ers took control after leading 14-10 at halftime.

First, 3rd-and-6th from the Rams’ 42-yard line with nine minutes left in the third quarter, Pro Bowl defensive end Nick Bosa pressured quarterback Matthew Stafford to throw. a punt.

On Los Angeles’ next possession, while leading 17-14, All-Pro linebacker Fred Warner capped their three-and-out with a 9-yard sack on 3rd-and-7.

The 49ers had two sacks and five QB hits.

Eric Branch covers the 49ers for The San Francisco Chronicle. Email: ebranch@sfchronicle.com Twitter: @Eric_Branch