WWE Extreme Rules (simply known as Extreme Rules) is a professional wrestling event produced annually by WWE, a Connecticut-based promotion, and broadcast live and available only through pay-per-view (PPV) and the WWE Network.
 The name of the event stems from most matches being contested under hardcore wrestling regulations; the defunct Extreme Championship Wrestling (ECW) promotion originally used the term to describe the regulations for all of its matches.
 The event name was established in 2009; however, its theme began with its predecessor, One Night Stand, which was promoted in 2005 and 2006 as an ECW reunion show.
 In 2007, WWE promoted the show as one of its own regular PPV events but kept the ECW concept of Extreme Rules matches.
 In 2009, WWE renamed the One Night Stand event to WWE Extreme Rules.
 The 2009 Extreme Rules event was noted by WWE to be a direct continuation of the One Night Stand chronology.
 However, the 2010 event was later promoted as only the second event under a new chronology, one that is no longer a direct continuation of the One Night Stand events.
 Starting in 2010, Extreme Rules was moved from June to late April/early May to replace Backlash as the post-WrestleMania pay-per-view event.
 For 2013, the event was scheduled to take place in mid-May and replace Over the Limit, which was moved to October before being discontinued later that year and replaced by Battleground.
 The event will return to the early June slot of WWE's pay-per-view calendar and will be a Raw-exclusive pay-per-view event.
Battleground (2016) was a professional wrestling pay-per-view (PPV) event and WWE Network event produced by WWE.
 It took place on July 24, 2016 at the Verizon Center in Washington, D.C. It was the fourth event under the Battleground chronology, and the final event before the newly reinstated WWE brand extension went into full effect.
Over the Limit was a professional wrestling pay-per-view (PPV) event produced by WWE, a professional wrestling promotion based in Connecticut.
 The event was created in 2010, replacing Judgment Day in May.
 Since its origin, the event has been held only in indoor arenas in the United States.
 Championship bouts are scheduled on every card, with the lower-tier titles featured on the undercard and the top-tier featured on the main card.
 Under the Brand Extension, WWE assigns its performers to either Raw or SmackDown which cause matches to be set up between wrestlers on the same show.
 John Cena has competed in all of the main events in Over the Limit history.
 In 2013, Over the Limit was scheduled for the October PPV slot but was replaced by WWE Battleground.
Battleground (2015) was a professional wrestling pay-per-view (PPV) event produced by WWE.
 It took place on July 19, 2015, at the Scottrade Center in St. Louis, Missouri.
 It was the third event under the Battleground chronology.
 Battleground was available for free to new subscribers on WWE's monthly subscription service, the WWE Network in over 140 countries.
Battleground (2014) was a professional wrestling pay-per-view (PPV) event produced by WWE.
 It took place on July 20, 2014 at the Tampa Bay Times Forum, in Tampa, Florida.
 It was the second event under the Battleground chronology.
 It was also the last WWE pay-per-view event to use the WWE scratch logo.
Amalie Arena is an arena in Tampa, Florida, that has been used for ice hockey, basketball, and arena football games, as well as concerts.
 It is home to the Tampa Bay Lightning of the National Hockey League and the Tampa Bay Storm of the Arena Football League.
Battleground (2017) was a professional wrestling pay-per-view (PPV) event and WWE Network event produced by WWE for the SmackDown brand.
 It took place on July 23, 2017, at the Wells Fargo Center in Philadelphia, Pennsylvania.
 It was the fifth event under the Battleground chronology.
WWE Battleground is a professional wrestling event produced by the WWE, a Connecticut–based promotion, and broadcast live and available through pay-per-view (PPV) and the WWE Network.
 The event was established in 2013, debuting in October on WWE's pay-per-view calendar.
 In 2014, the event moved to the July slot of WWE's pay-per-view calendar.
 As of 2017, the pay-per-view was a SmackDown branded event.
WWE Hell in a Cell is a professional wrestling event produced annually by WWE, a Connecticut-based professional wrestling promotion, and broadcast live and available only through pay-per-view (PPV) and the WWE Network.
 The event was established in 2009, replacing WWE No Mercy in the early October slot of WWE's pay-per-view calendar.
 In 2012, WWE announced that Hell in a Cell will be moving to late October, leaving only one pay-per-view in October.
 However, in 2013, WWE added Battleground (originally as Over the Limit) in an early October slot.
Battleground (2013) was a professional wrestling pay-per-view (PPV) event produced by WWE.
 It took place on October 6, 2013 at the First Niagara Center in Buffalo, New York.
 This pay-per-view was announced on the April 8, 2013 "Raw" as the new October WWE pay-per-view, a week after Over the Limit.
 This was the first annual Battleground event.
 The event received 114,000 buys worldwide, making it the second lowest number (to the ECW December to Dismember) in the last 17 years.
 The buy rate was down from the last Over the Limit event of 167,000.

Question: What arena was used for the WWE Battleground(2014) event?
Answer: Amalie Arena