Our popular Tigers ABC to Z series returns with the letter R.R is for red cards: Leicester Tigers players have been issued with a red card on 16 occasions since they were introduced in the 1994/95 season.   Before then, referees would point to the dressing room to dismiss a player. In total, Tigers players have been sent off 29 times.   Monty Whitehead, a forward who made 146 appearances between 1895 and 1901, was the first Tigers player to be sent off when he got his marching orders in a 12-9 win at home to Keighley in 1899.   Lock Bob Rowell was the first player to be sent off on two occasions for the Tigers. Rowell was sent off for the first time in a 43-11 defeat at Llanelli in 1970 and his second came at Fylde in 1975. Robin Cowling was also dismissed in this game as Tigers recorded an unlikely 21-19 win despite being down to 13 men for an hour.   The first Tigers player to receive a red card after their introduction was Martin Corry for punching in a 15-15 draw with Northampton in 1998. The former Tigers and England captain became the first Tigers player to receive a red card for a second time when referee Chris White sent him off in a 19-17 defeat to Saracens in 2005.   Prop Julian White is the only other Tigers player to be red-carded on two occasions, against Newcastle at Welford Road in 2005 and against Sale at Welford Road in 2009. White, incidentally, has sent off on two occasions against the Tigers, at Bristol in May 2002 and again in September 2002.   R is for records: Welford Road was included in the Guinness Book of Records after staging the longest ever continuous rugby match, which was organised in aid of charity Scotty’s Little Soldiers.   The home of Leicester Tigers hosted the match between teams representing Scotty's and the Armed Forces between 11am on May 31 and lunchtime on June 1, 2013.   It lasted 24 hours and 51 minutes and was confirmed as a world record by the Guinness Book of Records, the universally recognised authority on record-breaking achievements. The Armed Forces XV won the game 1,742 - 828.   R is for replacements: The first replacement to be introduced by Leicester Tigers came at Manchester in 1911 when Thomas Hogarth came on for Frank Tarr, who had twisted an ankle, this despite substitutions for injured players not being introduced until 1976/77.   The new Tigers History Book records that hooker George Chuter has made the most appearances for Tigers as a replacement with 84. He was also replaced in 124 matches, more times than any other player.   The first tactical substitution saw Rory Underwood replace Leon Lloyd in the 1996 European Cup quarter-final against Harlequins at Welford Road.   Blaine Scully came off after 21 seconds of the game against Northampton at Welford Road in October 2013 for a concussion check, before returning to the field, while Boris Stonkovich left the pitch after just 51 seconds of his final game for the club, against Saracens at Welford Road in May 2014.   R is for Redfern: Brothers Steve and Stuart Redfern played in 565 games between them in the Leicester Tigers front row.   With 237 appearances, Steve played more times in the letter C shirt than any other player. He played in Tigers’ five John Player Cup finals between 1978 and 1983 and was voted the tighthead in the Walk of Legends team by readers of the Leicester Mercury.   His younger brother Stuart was a loosehead prop and made 324 appearances for the club from 1982 to 1992, more than any other player in the letter A shirt.