Quick, name the American League outfielder with the best on-base percentage.

No, it isn’t Mike Trout. Not Jose Bautista either.

Try Daniel Nava.

It’s true. Nava brought a .394 on-base percentage into the Red Sox’ series finale against the Tampa Bay Rays last night. He also was second among AL outfielders in batting average (.300), tied for third in RBI (42) and 10th in slugging percentage (.469), and he was leading the majors with 24 RBI in the seventh inning or later.

And that was before he fouled off five pitches in a row and won a 10-pitch duel with high-strung Rays rookie starter Chris Archer by hitting a two-run home run in the third inning. On the third anniversary of his major league debut, when he hit the first pitch he saw for a grand slam, Nava accounted for the offense in a 2-1 nail-biter of a Sox win that clinched their fourth consecutive series victory.

Alfredo Aceves certainly did his part to make Nava’s home run stand up. Summoned from Triple-A Pawtucket to make his second spot start in just over two weeks, Aceves (3-1) went six innings, giving up four hits and four walks while allowing the Rays to score only on Evan Longoria’s sixth-inning home run.

“He keeps coming up in a lot of conversation on things — are we surprised about it? Did we ever envision the contribution?” manager John Farrell said of Nava, the former independent leaguer who wasn’t even invited to major league camp in spring training last year. “We just want to let him continue to do his thing.”

But although Nava is doing it better than almost anyone, he isn’t on the All-Star ballot.
“He’s got my vote,” Farrell said.

Surely, players across the league have taken notice. Nava has emerged as an everyday outfielder for the first-place Red Sox, and with the All-Star Game only a month away, he still has a chance to be selected to the AL roster if enough of his peers vote for him or if manager Jim Leyland names him to the team.