Grady Sizemore hit .289 with one double, one home run and two RBIs in 10 games with the IronPigs. (Ken Inness/MiLB.com)

MILWAUKEE -- The Phillies dropped some serious hints that Grady Sizemore would join the big league club before the All-Star break.

They made it official Thursday evening when they announced they selected his contract from Triple-A Lehigh Valley and optioned right-hander David Buchanan to Triple-A to make room for him on the 25-man roster. They placed left-hander Cliff Lee on the 60-day disabled list to make room for Sizemore on the 40-man roster.

Both Buchanan and Lee are paperwork moves and nothing more.

The Phillies don't need a fifth starter until July 22, so optioning Buchanan allows the club to carry an extra bat into the break and through the first series after the Midsummer Classic in Atlanta. It also allows Buchanan to keeping pitching. Lee, who has been on the DL since May 19 with a strained left elbow, can be activated as early as July 18.

Lee, who is making a third rehab start Monday with Class A Clearwater, is expected to pitch in Atlanta.

The Phillies signed Sizemore because their outfield production has been among the worst in baseball this season. Their overall .679 OPS in the outfield ranked 23rd in baseball entering Thursday. Their .566 OPS in left field is last, and their .654 OPS in center field is 21st.

It is unclear how much of a boost Sizemore can actually provide. He hit just .215 with 10 doubles, two triples, two home runs, 15 RBIs and a .612 OPS in 52 games before the Red Sox released him last month. He had been one of the better outfielders in baseball with the Indians from 2004-09 before seven surgeries for a variety of injuries limited him to 104 games 2010-11 and kept him out of baseball in 2012-13.

Sizemore hit .289 with one double, one home run, two RBIs and a .738 OPS in 50 plate appearances over 10 games with the IronPigs.