This Saturday's clash against London Irish, will be a massive game for Quins, so make sure you are at the Stoop to cheer the boys on! Here are London Irish's 4 players to watch...
Four players to watch
Recognised as one of the Guinness Premiership's best second rows, Bob Casey has become a London Irish legend in his seven years with the club. He has already made 185 senior appearances and scored six tries. He captained the Exiles to a Heineken Cup semi-final with Toulouse in 2008 and led them to the Guinness Premiership Final in 2009.
Born in Maynooth, County Kildare the big man has enviable leadership qualities, is an exceptional lineout operator and a workaholic in the loose. He made his senior debut for Ireland against Australia in 1999 and has seven caps.
Former All Black prop, Clarke Dermody joined London Irish in October 2007. Regarded as an outstanding loose head prop with great technique and experience, Clarke was a natural to follow the great Neal Hatley in a key front row position for the Exiles. Dermody was capped by New Zealand in 2006 against Ireland (twice) and England. Now in his second full season at London Irish, Clarke has 47 appearances for the club.
Alfredo Lalanne is a highly regarded scrum half who joined London Irish in November 2008 and has since made 13 senior appearances. He played for his country's age group teams before catching the eye for Argentina's Sevens team in the IRB World Series circuit in 2007. He was also his country's number one choice as scrum half in the IRB Nations Cup in Bucharest in 2007. He was awarded his first full cap for Argentina in the summer 2008 against South Africa and went on to play for his country in the two tests against England in June 2009.
Elvis Seveali'i joined the London Irish squad in September 2008. The powerful Samoan international centre grew up in Wellington in New Zealand where he played for the city's NPC team. In 2002 he moved to the northern hemisphere where he played for Bath in the 2002-03 season before joining the Ospreys for two seasons. In 2005 he returned to England and played for Sale Sharks. Now in his second season with London Irish he has made 34 appearances and scored eight tries. He made his international debut for Samoa against Fiji in 2000 and has since been awarded 15 caps and has scored nine international tries.
During week commencing 22nd April Harlequins will launch an innovative, new Membership Scheme which will replace the existing Season Ticket Holder Programme. Further details of the scheme will be announced in due course.