"I changed everything. Everything," Martinez said. "From my hands to my feet my leg kick my stride my load -- just everything."
Martinez, who is trying to earn his way back onto the 40-man roster, said the overall goal was to keep his bat in the hitting zone longer.
"I was looking at video and noticed it through watching Jason (Castro)," Martinez said. "Watching Castro and how he changed his hands from two years ago to last year, and the adjustment that he made. It was kind of the same time Ryan Braun got popped for PEDs, and the whole Ryan Braun scandal was going on and all his highlights were showing up on TV.
"And I saw him and I was like, ‘Woah, am I the only one who doesn’t know this type of deal?’ And I kept going on the Internet and looking, and looking and looking, and I would look at mine and I would see the difference. How long they were in the zone, and how long my bat was in the zone."
"I think you can look at Brett Wallace’s situation, J.D. Martinez’s situation and from a prospect standpoint, both of those guys have had success at the major-league level," Porter said. "But it just goes to show how quick things can turn at the major-league level. …. I believe both of those guys will have bounce-back years."
The team's other invitees include pitchers Jake Buchanan,
Correa, 19, was the No. 1 overall pick in the 2012 amateur draft. He hit .320/.405/.467 with nine home runs, 86 RBI and 10 stolen bases in 450 at-bats with Class A Quad Cities last season.
Appel, 22, was the No. 1 overall pick in the 2013 amateur draft. He went 3-1 with a 3.79 ERA, 1.18 WHIP and 33:9 K:BB ratio in 38 innings over 10 starts between low Class A Tri-City and Class A Quad Cities.
Jackson went 0 for 7 in seven appearances with the Cardinals last season while also hitting .278/.352/.346 with three home runs, 34 RBI and nine stolen bases in 442 at-bats with Triple-A Memphis. Ely pitched just four Triple-A innings before undergoing Tommy John surgery. Martinez hit .250/.272/.378 with seven home runs and 36 RBI in 296 at-bats with the Astros last season.
Martinez was not in the lineup Friday. He batted .256 with seven home runs and 36 runs driven in 273 at-bats before suffering a sprained wrist on July 26.
|CBSSports.com Player Ranking|
|9/29/2013 vs N.Y. Yankees|
|vs N.Y. Yankees||4||1||0||.250||.500||.250|
|vs Williams (Career)||6||3||0||.500||.500||.500|
|Last 7 Games|
|Complete Game Log|
| 30 || 31 || 1 |
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|More Batting Stats|
|Minor League Batting Stats|
|2010||AA-Corpus Christi Hooks||50||189||24||57||9||1||3||25||15||42||2||2||.357||.407||.302|
|2011||AA-Corpus Christi Hooks||88||317||50||107||25||1||13||72||42||55||1||0||.414||.546||.338|
|2012||AAA-Oklahoma City RedHaw||23||90||6||21||6||0||0||4||4||17||0||1||.263||.300||.233|