By ERIK ERLENDSSON TAMPA — A.J. Greer and Eetu Luostarinen scored short-handed goals 42 seconds apart in the second period to help the Florida Panthers beat the Tampa Bay Lightning 4-2 on Sunday to open a home-and-home series. The teams will play again Monday night at Florida. Sam Reinhart scored twice, the second into an empty net, and Spencer Knight stopped 19 shots for Stanley Cup champion Florida.