Rafael Betancourt (groin) is scheduled to undergo an MRI on Wednesday.

Betancourt left Tuesday's game with a tight right groin, an issue which has lingering since late April. He's hoping to avoid the disabled list, but the Rockies may decide that a couple of weeks of rest is the best course of action. Rex Brothers is the likely favorite for saves if Betancourt needs to miss time, but Wilton Lopez could also figure in.

Matt Guerrier struck out a pair over two scoreless innings of relief Tuesday against the Rockies.

He entered the contest with just four punch outs, so last night's performance qualifies as an outburst. Guerrier used to be a holds machine for the Twins, but he's posted just 19 over the past three seasons for the Dodgers, four less than he had in his last year in Minnesota. An elbow injury cost the veteran most of last season. He owns a 3.45 ERA, 1.21 WHIP and ugly 6/6 K/BB rate over 18 appearances.

Xavier Paul has hit whenever he's been called upon by the Reds, slashing .270/.400/.405 over 90 plate appearances.

Since he was called up by the Reds last July, Paul has hit as well as any reserve outfielder, batting .294/.389/.438 with four homers and 20 RBI in 160 at-bats. Paul has cost Cincy four runs below replacement defensively in limited opportunities this year, so he'll have to keep his lumber warm to steal at-bats.