Question:
Deshabandu Muttiah Muralitharan (Tamil: muttaiyaa murlliitrnnn, Sinhalese: muttyiyaa murlidrn; also spelt Muralidaran; born 17 April 1972) is a former Sri Lankan cricketer who was rated the greatest Test match bowler ever by Wisden Cricketers' Almanack in 2002. He retired from Test cricket in 2010, registering his 800th and final wicket on 22 July 2010 from his final ball in his last Test match. Muralitharan holds the world record for the most wickets in both test and one-day cricket.
On 7 July 2010, Muttiah Muralitharan formally announced his retirement from Test cricket at a media briefing in Colombo. He confirmed that the first Test Match against India due to commence on 18 July, 2010 would be his last, but indicated that he was willing to play One-Day Internationals if it was considered necessary leading up to the 2011 World Cup, which Sri Lanka co-hosted. He identified Sri Lanka's World Cup win of 1996 as his greatest moment as a cricketer. He also stated that there were some regrets during his 19-year playing career. "Not winning Test Matches in South Africa, Australia and India are regrets. But I am sure we will win very soon."  At the start of his last match, Muralitharan was eight short of 800 wickets. At the fall of the ninth wicket of the Indian's second innings Muralitharan still needed one wicket to reach the milestone. After 90 minutes of resistance Muralitharan was able to dismiss the last Indian batsman Pragyan Ojha on the last delivery of the final over of his Test career. By doing so he became the only bowler to reach 800 wickets in Test cricket. Sri Lanka won the match by 10 wickets, the seventh time they have done so and the second time they have done it against India.  In late 2010, Muralitharan announced his retirement from international cricket after 2011 Cricket World Cup, co-hosted by Bangladesh, India and Sri Lanka announcing "This World Cup will be my last outing. I am retiring totally from international cricket thereafter. My time is up. I've signed up to play for two years in IPL." His final ODI appearance in Sri Lankan soil came during the semi0final clash against New Zealand, where Muralitharan took the wicket of Scott Styris in his last delivery. His last ODI was against India in World Cup final at Mumbai, however Sri Lanka lost the match and Murali couldn't take any wicket.
Answer this question using a quote from the text above:

was there a reason for him to retire

Answer:
He confirmed that the first Test Match against India due to commence on 18 July, 2010 would be his last,


Question:
Fliehr was born on February 25, 1949 in Memphis, Tennessee. His birth name is widely perceived to be Fred Phillips, although on different documents, he is also credited as Fred Demaree or Stewart, while his biological parents were Luther and Olive Phillips (the latter of which was also credited under the Demaree and Stewart surnames). He was adopted, and at the time of his adoption (arranged by the Tennessee Children's Home Society), his father, a physician, was completing a residency in Detroit. Shortly afterward, the family settled in Edina, Minnesota, where the young Fliehr lived throughout his childhood and after ninth grade he attended Wayland Academy, a coeducational boarding school in Beaver Dam, Wisconsin, for four years (five years total in high school), during which time he participated in interscholastic wrestling, football and track.
On March 31, 2012, while still contracted to TNA, Flair became the first person to be inducted into the WWE Hall of Fame twice, the second time as part of the class of 2012 with The Four Horsemen. On December 17, 2012, Flair returned to WWE as a non-wrestling personality on the annual Slammy Awards show to present the Superstar of the Year award to John Cena, who in turn gave the award to Flair. Flair's return was interrupted by CM Punk and Paul Heyman, escalating into a confrontation that ended with him locking Heyman in the figure-four leglock. After clearing the ring, Flair was assaulted by The Shield, until Ryback and Team Hell No (Kane and Daniel Bryan) helped Flair fend off the group.  Flair appeared on the main roster sporadically throughout 2013, as The Miz's mentor. He also occasionally appeared on NXT in 2013 and 2014, accompanying his daughter Charlotte to the ring.  Flair appeared on the April 28, 2014, episode of Raw, alongside the reunited Evolution (minus Flair) and The Shield; Flair showed his endorsement for The Shield, Evolution's opponents at Extreme Rules, effectively turning his back on his old teammates. On July 14, John Cena symbolically handed over his World Heavyweight Championship belt to Flair, telling him to "take it" while promoting his match at Battleground. On the post-SummerSlam Raw in August 2015, Flair interrupted Jon Stewart, who had saved Flair's 16 world title record by preventing Cena's victory the previous night, telling him that the record would be broken eventually and he would rather it would be by someone who he respects.  Flair began making more frequent appearances with Charlotte after she won the Divas Championship. In January 2016, Flair and Charlotte began displaying villainous traits, with Flair often getting involved in Charlotte's Divas Championship and later WWE Women's Championship defenses. This lasted until the May 23, 2016 episode of Raw, when Charlotte turned on him. On the November 28, 2016 episode of Raw, Flair returned to congratulate the new Raw Women's Champion Sasha Banks, who had defeated Charlotte to win the title. On the November 14, 2017 edition of SmackDown, Flair returned to congratulate his daughter, after she won the SmackDown Women's title from Natalya, incidentally in Charlotte's hometown of Charlotte, North Carolina, this being his first appearance for WWE since nearly dying earlier in the year.
Answer this question using a quote from the text above:

Has he done anything else since?

Answer:
Flair appeared on the April 28, 2014, episode of Raw,