Which of these NBA players are the best at their position?

This is a guest post by David Fuhrman, a research fellow at the Brookings Institution, a nonpartisan Washington think tank.

David Fuhnman is a research associate at the National Bureau of Economic Research.

Tags baseball,baseball,baseballs,balls,players source Vice Sports title MLB’s Bryce Harper and Justin Upton, who’s the best baseball player?

article The best baseball players aren’t exactly getting along.

Bryce Harper is batting .286, Justin Upton is hitting .285, and the Nationals have an All-Star in both Bryce Harper (.299) and Justin Tucker (.299).

That’s according to ESPN Stats & Info, which uses Baseball-Reference’s fielding metrics to rank all players on the major leagues.

In fact, MLB’s fielding metric has Harper, who ranks second in baseball in fielding percentage (.749), second in fielding runs (27), and fifth in fielding batting average (.320).

Upton, in contrast, ranks sixth in fielding and batting average, both of which are career lows.

Bryce Harper and Bryce Tucker are two of the best outfielders in baseball, according to Baseball-reference.com’s fielding data.

They’re the only players in the majors with a fielding percentage of over 30 percent, the second-highest mark in baseball behind Nolan Arenado (.34).

Harper ranks first in the league in fielding.

(Getty Images)Bryce Tucker is the best shortstop in baseball.

He ranks first among outfielders with at least 1,000 at-bats and second in doubles, third in home runs, third among second basemen in slugging percentage, fourth in home run rate and fifth among third basemen.

Tucker is batting a career-high .318 with 21 home runs.

Bryce Tucker is also hitting well at the plate, hitting .333 in his first month in the big leagues.

He’s tied for third in the National League with a .318 average.

Tucker has also struck out an MLB-best 15.2 percent of the time, ranking second in the major league behind only Jason Heyward (.16).

He’s also batting .323 in his last 30 games, second in NL history behind Michael Young (.340 in that same time frame).

Bryce Upton is one of the most exciting young players in baseball and is in the midst of a breakout season.

He leads all NL rookies in hitting, with .328 and a team-leading 10 homers.

He also leads all hitters in slugting percentage and is second in batting average.

The 22-year-old Upton is batting at .311 with 13 home runs and a career high 16 stolen bases.