PHILADELPHIA -- Brad Mills sat behind the visiting manager's desk at Citizens Bank Park before Monday night's game and shrugged his shoulders. When it comes to Tuesday's starter in an afternoon tilt against the Phillies, there remain too many variables to announce a starter and, for now, everyone is in a holding pattern.

One of those variables, understandably, was a weather pattern that suggested Tuesday will be not only a battle against Philadelphia, but the weather as well, and with roster moves pending, a decision most likely wouldn't come until after Monday night's contest.

"I'm getting ready," the manager joked as he warmed up his right arm. "Well, there are so many things that are going into this. We have to make a corresponding move and we're just not ready to do anything yet."

The educated guess remains Jordan Lyles, who is on schedule to start on Tuesday for Triple-A Oklahoma City. The 22-year old right-hander is 5-0 with a 3.49 ERA with the RedHawks and has just eight walks in 38 2/3 innings of work.

The Astros don't have to make a decision until just before the 12:05 p.m. CT start, which appears to be in danger due to rain.

Myers excelling in closer's role with Astros

PHILADELPHIA -- The walls of the hallway outside of the Citizens Bank press room are adorned with magazine and newspaper covers celebrating the history of the Phillies organization. Granted, for a franchise that has won just two World Series titles in over 100-plus years of baseball and has over 10,000 losses, much of the celebration is of recent history.

So it should come as no surprise, that current Astros closer and former Phillies pitcher Brett Myers is featured prominently. In fact, Myers is on several newspaper covers that came from his greatest moment as a closer, when the Phillies won the National League East title on the final day of the 2007 season.

At that time Myers felt he had finally found his role. He relished the role of closer and having the game come down to him and the hitter. Myers, however, didn't get to return to the bullpen the next season, as the Phillies acquired Brad Lidge and Myers returned to the rotation.

Now, four years later, Myers, who has nine saves in 10 opportunities, has again found himself in the role he was born for and is again excelling.

"There's a lot of similarities between [Phillies closer Jonathan Papelbon] and [Myers]," Astros manager Brad Mills said. "He's done a great job. With all of his experience, he's really helped out down in our bullpen. Just in helping them prepare and learn about themselves. He's just been really big for us."

Worth noting

• Astros second baseman Jose Altuve returned to the lineup after a day off in Pittsburgh on Sunday. Altuve was at the top of the lineup on Monday at Citizens Bank Park where the Astros were set to play the Phillies and starter Joe Blanton in the first of two games. Altuve is hitting .323 with 13 RBIs.

• The Astros own the best record against Philadelphia since 2004 with a 32-20 record. They are the only National League club with a winning record in that time frame.