CLEVELAND (AP) — Josh Naylor delivered a clutch, three-run double in the seventh inning as the Guardians continued their best start in 25 years with a 6-2 win over the Oakland Athletics on Sunday to complete a three-game sweep.

With the Guardians up 3-2, Naylor, who celebrated a two-run homer on Saturday by bashing the top of his helmet with his bat before rounding the bases, fell behind 0-2 in the count before doubling with the bases loaded off left-hander T.J. McFarland.

Naylor is batting .406 (13 of 32) with 14 RBIs in nine home games.

“He’s something else right now,” said Guardians first-year manager Stephen Vogt.

The surprising Guardians have won four straight, seven of eight and improved the AL’s best record to 16-6. This is the club’s best start since Cleveland had the same mark through 22 games in 1999.

Naylor has been a rowdy ringleader, with his passion impacting Cleveland’s entire roster.