Miami (48-53) at Arizona (54-48)

In just his second full season in the majors, Scott Olsen has proven to be one of the Florida Marlins’ top pitchers. His conduct off the field, however, has become a concern.

Four days after being arrested, Olsen takes the mound Wednesday when the Marlins continue their four-game series with the Arizona Diamondbacks.

Olsen (8-7, 4.99 ERA) was arrested around 4 a.m. Saturday after refusing to pull his car over and getting into a fight with police. He was booked on charges of driving under the influence, resisting an officer with violence and fleeing and eluding an officer. Police say Olsen kicked them when they tried to arrest him at his house, and they used a stun gun to subdue him.

The arrest came hours after the 23-year-old left-hander allowed two runs and four hits in seven innings of Friday’s 10-2 win over Cincinnati - his first start since serving a two-game suspension for insubordination and conduct detrimental to the team. The suspension stemmed from a confrontation July 15 with fellow pitcher Sergio Mitre.

Despite his recent troubles, Olsen has been the Marlins’ (48-53) most consistent starter over the last seven weeks. He leads the team in wins, and Florida is 7-2 with him on the mound since June 6.

“I’m just taking it like it’s a normal start,” Olsen told the team’s official Web site. “I’m still on a normal five-day rotation. I still threw my bullpen. I’m still doing my work. It’s just another day in the office.

“We obviously had some other stuff come up. We were able to come in here and get some things done. I think we’ll be alright. I don’t think it will affect anything.”

In his only career start against Arizona, Olsen gave up six runs and nine hits in five innings of a 6-3 defeat last Aug. 12.

The Diamondbacks (54-48) beat the Marlins 9-3 on Tuesday, their fourth straight win after a 4-13 stretch.

Third-place Arizona scored its most runs since a 10-8 victory over Tampa Bay on June 19, and pulled within 2 1/2 games of the NL West-leading Los Angeles Dodgers. Second-place San Diego is one game out.

“It’s good to see us put the pressure on,” Diamondbacks manager Bob Melvin said. “We scored what, the first four innings in a row, then tacked on a couple of more after that, too. So as far as the offense goes, that’s the best we’ve been in awhile.”

Orlando Hudson homered in his second straight game, and is 8-for-17 (.471) with six RBIs during the winning streak after going 2-for-20 in his previous six contests.

Brandon Webb (8-8, 3.38) looks to keep Arizona’s winning streak intact and earn his first victory in nearly a month. He is 0-3 with a 4.91 ERA in four starts since beating the Los Angles Dodgers on June 27.

On Friday, the reigning NL Cy Young Award winner allowed three runs and five hits in seven innings of a 6-2 loss to the Chicago Cubs.

The right-handed sinkerballer is 2-3 with a 6.28 ERA in five career starts against the Marlins.

Florida second baseman Dan Uggla homered twice on Tuesday, and is 14-for-30 (.467) with four home runs, five doubles and 11 RBIs in his last seven games.