Stock Report: Nathan, Perez up

ARLINGTON, Texas -- It's Friday, which means it's time for our weekly stock report. Let's take a look at who's trending up and who's trending down with the Rangers:


Joe Nathan: He was the American League delivery man of the month after saving all 11 of his opportunities in June. Nathan has converted 12 straight saves and is 28 for 29 for the season. He has a 9⅓ scoreless innings streak intact. Nathan can put a scare into you -- Seattle's Kyle Seager hit one off Nathan to the fence in a 5-4 game on Thursday night -- but he is getting the job done.

Martin Perez: His scoreless inning streak ended at 16 2/3 innings Thursday night after the Mariners scored an unearned run against him. Perez has pitched five innings and allowed two runs or less in all three of his starts since being recalled from Triple-A Round Rock. He has stabilized the rotation while rookies Nick Tepesch and Justin Grimm have struggled of late.

Engel Beltre: When the 23-year-old rookie outfielder is involved in the game, something exciting happens. Beltre sparked the Rangers again Thursday night, scoring the go-ahead run from third base on a shallow line drive to left field. Beltre has two multihit games in three starts and tons of energy to go with it.


A.J. Pierzynski: Pierzynski isn't alone as far as slumping, especially power wise. He has two hits in his past 21 at-bats, though his single in the seventh inning Thursday night keyed a four-run inning and rallied the Rangers from a 3-1 deficit. He's in a bit of home run drought, going without a long ball since June 22. Ian Kinsler, Adrian Beltre and David Murphy have all ended 20-plus game streaks without a home run this week, so it's Pierzynski's turn.

Robbie Ross/Neal Cotts: OK, their stock isn't really down. The overall picture says both pitchers have been outstanding this season. But they did each give up two-run home runs in the series against Seattle, both coming with the game tied. Ross' home run allowed to Seager came in the top of the 11th, and the Rangers went on to lose 4-2.

The Heat: What happened to the 100-degree days in Arlington? The scorchers? The game-time temperature on July 4 was 93 degrees. After a hot start to the homestand, it's been mild all week. Maybe the sun is in a slump? We probably won't be saying that in August.