Question: Which American television host and sports reporter co-hosted the seventh season of "American Ninja Warrior" and currently a host for "The Herd with Colin Cowherd?"
Context: Kristine Leahy (born October 16, 1986) is an American television host and sports reporter.  She is most known as a host on NBC's "American Ninja Warrior" and is the co-host and newswoman of Fox Sports 1's simulcast of "The Herd with Colin Cowherd".  She is also an anchor and reporter for KCBS-TV in Los Angeles. Colin Murray Cowherd (born January 6, 1964) is an American sports media personality.  Cowherd began his broadcasting career as sports director of Las Vegas television station KVBC, and as a sports anchor on several other stations before joining ESPN in 2003, where he hosted a radio show on the ESPN Radio network, and also became one of the original hosts of ESPN's television program "SportsNation", as well as "Colin's New Football Show".  Cowherd is the host of "The Herd with Colin Cowherd" on Fox Sports Radio and Fox Sports 1.  The Herd is FS1's top rated program.  He is also a host of Speak For Yourself - also on FS1. The second season of "American Ninja Warrior" began on December 8, 2010, in Venice Beach, California where 300 competitors took on the course.  The 16 semi-finalists moved on to the ""Ninja Warrior Boot Camp"" in the remote California mountains, where they competed in a series of team challenges.  Then, the final moved on to compete in the season finale of "American Ninja Warrior 2" as a part of "Sasuke 26" at Mount Midoriyama in Japan.  The series concluded on January 2, 2011. The seventh season of "American Ninja Warrior" premiered on NBC on May 25, 2015.  Hosts Matt Iseman & Akbar Gbaja-Biamila returned for their respective sixth and third seasons while newcomer Kristine Leahy joined as sideline reporter, replacing Jenn Brown.  In addition, this season's grand prize was increased from $500,000 to $1,000,000.  The season concluded on September 14, 2015. American Ninja Challenge was a nationwide competition sponsored by G4 TV to send a number of American citizens to Japan to compete in the TBS hit TV show "Sasuke" (known as "Ninja Warrior" in US).  American Ninja Challenge has been held since "Sasuke" 19 (the 19th competition) and currently merged into the TV series "American Ninja Warrior" that premiered on December 12, 2009 and succeeded American Ninja Challenge. The fourth season of "American Ninja Warrior" began on May 20, 2012, and aired on NBC and G4.  This was a landmark season for "Ninja Warrior", as the entire format was overhauled.  For the first time, the finals took place on U.S. soil.  In addition, regional qualifiers were added, taking place in Dallas, TX, Miami, FL, and the series' flagship location, Venice Beach, CA.  New co-host Jonny Moseley replaced Jimmy Smith, while Angela Sun replaced Alison Haislip.  Again, the winner would have received $500,000 and the coveted "American Ninja Warrior" title.  Brent Steffensen became the first contestant to complete the ultimate cliffhanger. The fifth season of American Ninja Warrior premiered on G4 on June 30, 2013, with subsequent shows airing on both G4 and NBC.  Host Matt Iseman returned for his fifth season, while newcomers Akbar Gbaja-Biamila and Jenn Brown replaced skier Johnny Moseley and Angela Sun.  Similar to previous seasons, the winner receives $500,000 and the coveted title, "American Ninja Warrior".  This also marks the second season Mount Midoriyama was held on U.S. soil. American Ninja Warrior (sometimes abbreviated as ANW) is an American sports entertainment competition that is a spin-off of the Japanese television series "Sasuke".  It features hundreds of competitors attempting to complete a series of obstacle courses of increasing difficulty, trying to make it to the national finals on the Las Vegas Strip, in hopes of becoming an "American Ninja Warrior".  To date only two competitors, rock-climbers Isaac Caldiero and Geoff Britten, have won the course and achieved "Total Victory".  Caldiero is the only competitor to win the cash prize.  The series began on the now-defunct cable channel G4 and now airs on NBC with encore episodes airing on USA Network and NBC Sports Network. The Herd with Colin Cowherd is a sports talk radio show hosted by Colin Cowherd on Fox Sports Radio and Fox Sports 1.  The show features commentary on the day's sports news, perspective on other news stories, and interviews with celebrities, sports analysts and sports figures. Evan "The Rocket" Dollard is a U.S. athlete and rock climber.  He came to prominence during Season 1 of the rebooted American Gladiators, as the season 1 men's champion.  He earned his nickname "Rocket" from his speed in Gladiator competition, taking it as his gladiator name, becoming a Gladiator for season 2 of the rebooted American Gladiators.  He has since appeared prominently in the Ninja Warrior franchise; in American Ninja Warrior (and hence US TV specials for Sasuke called "Ninja Warrior") and the standalone American Ninja Warrior, also using his nickname.  Dollard also hosts his own web series, "Ninja Quickies".  He has also competed in local editions of Ninja Warrior.
Answer: Kristine Leahy