Jon Lester SP CHC 6 Months

Lester struck out five and did not walk a batter, while holding the Mariners to two runs on seven hits over eight innings in a losing effort Wednesday.

Felix Hernandez was simply better on the other side, limiting the Oakland offense to an Adam Dunn solo home run. All seven of Lester's starts with the A's have been quality outings, but he's been saddled with a loss in three of his last four turns. He'll seek wins No. 14 and 15 next week, first against the White Sox on Tuesday before a second start September 14 against the Mariners at Safeco Field.

Jon Lester SP CHC 6 Months

Lester took the loss on Friday, but pitched well, allowing only two earned runs over six innings while striking out five.

The A's offense let Lester down as they were shut out and the defenses let him down too, making two errors that led to a run in the sixth inning. Lester has been strong since joining the A's, allowing three earned runs or fewer in all six starts. Lester will next take the mound on Wednesday at home against the Mariners.

Jon Lester SP CHC 6 Months

Lester pitched well in his fifth start with the A's on Saturday, allowing one run while scattering five hits over seven innings in a no-decision against the Angels.

Lester also fanned seven while walking one and was nearly perfect until an RBI-single by Erick Aybar in the seventh tied the game 1-1. The 30-year-old owns a 2.93 ERA and a 6:25 BB:K in 27.2 innings with the A's since coming over from the Red Sox on July 31, and will be turned to for continued success on the hill as Oakland jostles with the Angels for the AL West lead down the stretch.

Jon Lester SP CHC 7 Months

Lester worked into the seventh inning Sunday night, surrendering four runs (three earned) on six hits and a walk while striking out five in a 4-3 loss to the Braves.

After three consecutive wins to begin his tenure in Oakland, Lester suffered his first loss with the A's on Sunday night. The 30-year-old lefty has been mostly solid across four starts since going from Boston to the West Coast, posting a 2.93 ERA, 1.08 WHIP and 8.1 K/9 across 27.2 innings. Lester is slated to be back on the bump next weekend versus the Angels.

Jon Lester SP CHC 7 Months

Lester fanned eight and walked two while allowing just three hits in a complete game shutout against the Twins on Thursday night.

Making only his second start for the A's since being acquired at the July 31 non-waiver trade deadline, Lester had little difficulty with the Twins' lineup Thursday, while affording the A's relief corps a full day of rest heading into Game 2 of the four-game set.

Jon Lester SP CHC 7 Months3 Comments

Athletics acquired LHP Jon Lester and OF Jonny Gomes from the Red Sox for OF Yoenis Cespedes.

The A's were unsatisfied with their rotation even after acquiring Jeff Samardzija (and Jason Hammel) from the Cubs, so they got a little more creative and picked up the top ace on the trade market. Lester can become a free agent after the 2014 World Series and is highly doubtful to re-sign with Oakland, but he'll give the club a big boost down the stretch and into October. The 30-year-old left-hander was sporting a 2.52 ERA, 1.12 WHIP, and 149/32 K/BB ratio in 143 innings this season for Boston. Now he moves to the most pitcher-friendly park in MLB.

Jon Lester SP CHC 7 Months

WEEI's Alex Speier reports that the A's have acquired left-hander Jon Lester and outfielder Jonny Gomes from the Red Sox for Yoenis Cespedes.

Without many elite-level prospects remaining in the wake of the Jeff Samardzija and Jason Hammel trade, the A's had to get creative to work out a deal for Lester. And this sure is creative. Cespedes has big-time power, a huge throwing arm, and is under contractual control through 2018, so it's a big piece to give up. Lester gets a massive fantasy boost with the move to pitcher-friendly Oakland.

Jon Lester SP CHC 7 Months

The Cardinals and Pirates are the two teams "pushing hardest" for Jon Lester, sources tell FOX Sports' Ken Rosenthal and Jon Morosi.

Rosenthal notes that the Dodgers remain involved as well. The Cardinals made a move for a starter on Wednesday, acquiring Justin Masterson from the Indians, but they remain interested in Lester as more impactful starter to pair with Adam Wainwright. Lester would immediately become the Pirates' ace down the stretch. Lester is a free agent after the season.

Jon Lester SP CHC 7 Months

FOX Sports' Ken Rosenthal reports that a trade sending Jon Lester to the Orioles is "not close."

Rosenthal didn't rule out something getting done, but it appears the two sides aren't as close to crossing the finish line as previously reported.'s Peter Gammons adds that the Red Sox still have "plenty" of alternatives if they're not able to work something out with the O's.

Jon Lester SP CHC 7 Months's Brittany Ghiroli reports that the Orioles are close to acquiring Jon Lester from the Red Sox.

The Boston Globe's Pete Abraham is also hearing the deal is close and says the Red Sox will receive a pitcher in return. He mentions Miguel Gonzalez, but he would figure to be a secondary part of the deal. It appears that Lester will get to stay in the AL East and has said in the past that he would still consider re-signing with the Red Sox.