I think this is the place you are thinking about...
<a href="http://www.theyardbaseball.com/">The Yard Baseball Softball Training Center</a>
1902-B Mcgaw Ave.
Irvine,CA 92614
(949) 250-1199
M-F 3pm-9pm
Sat 10am-5pm
Sun Appointment Only
Check the website as there is a notice saying "<em>This location will close it's doors on June 30th at 9pm. Stay tuned as we build-out our new location which will house new technologies to take training to the next level!!!</em>"