Baseball players used to talk about how it “takes 25 guys” to win a World Series. Referring to the size of a Major League roster.

Twenty-five guys?

That idea is so 20th century.

The Los Angeles Dodgers are 82-34 and on pace for 115 victories — 10 more than any Dodgers team has won. And they are where they are not because of contributions from 25 guys — but thanks to contributions from closer to 45.

Injuries have been part of the churn of the 2017 roster, but to watch the Dodgers is to get a sense they want to move players up and down, between Los Angeles and Triple-A Oklahoma City, for temporary match-up advantages or perhaps even to give some guys, especially pitchers, some time off.

If this team goes on to win a World Series, among the several books likely to be written should be at least one focusing on the club’s perhaps unprecedented approach to handling its roster.

Moving pitchers (Stripling, Avilan, Baez, Dayton, Fields, Morrow, Romo, Hatcher) around every day or two, as the Dodgers have … well, that probably has happened somewhere. But the Dodgers must be on the outer limits of this.

Through 116 games, the Dodgers have used 23 (!) pitchers. Including 18 who have made at least five appearances and 15 who have made at least 10 appearances.

Nine pitchers have started, and if you can name them, give yourself a clap on the back. (Answer at bottom.)

The club typically carries 12 position players but only five are on pace to reach 502 plate appearances (the limit to qualify for a batting championship) and only three — Yasiel Puig (110), Corey Seager (107)  and Enrique Hernandez (103) have played 100 games, and the latter is a utility player who has played every position except catcher and pitcher.

Manager Dave Roberts generally puts down five names on the lineup card — outfielder Chris Taylor, outfielder Puig, shortstop Seager, first baseman Clay Bellinger and third baseman Justin Turner.

And even those guys are getting days off. Remember, the team has played 116 games. (Taylor is particularly useful for moving around and giving someone else a game off; he has played every position except catcher, pitcher and first base and generally leads off.)

The rest of the guys getting starting more than once in a while are Yasmani Grandal, the No. 1 catcher (with backup Austin Barnes becoming more of a contributor as the season progresses), Joc Pederson in center field and Chase Utley and Logan Forsythe, who pretty much share second base.

But, again, that is by no means a regular eight/nine. Hernandez has 232 at-bats, Adrian Gonzalez (remember him?) has 165, Barnes has 145, Andrew Toles has 96, Franklin Gutierrez has 56, Trayce Thompson has 43, Scott Van Slyke 41, Brett Eibner 33 … and in theory Andre Ethier, nearly forgotten behind all the guys named above, could be healthy sometime soon.

So that is 23 pitchers and 18 hitters, making for 41 players. So the Dodgers are going above and beyond the 40-man roster.

This is a club that is swapping players around nearly every day — and if you want to see the specifics, which are mind-boggling, look here.

It is hard to believe that any other recent champion used that many guys with any sort of regularity.

And before 2010, most good teams had lineups that rarely changed much.

It is an amazing and complex and perhaps unprecedented (as noted earlier) way to succeed — and succeed in an enormous way, so far.

It is worthy of closer study.

And the nine pitchers to start, this season? Clayton Kershaw (21 games), Alex Wood (18), Kenta Maeda (18), Rich Hill (17), Hyun-jin Ryun (17), Brandon McCarthy (16), Julio Urias (5), Yu Darvish (2) and Brock Stewart (2).

If you could name them all, you are paying close attention to perhaps the greatest National League team in this century.