17: Graziano Di Prima, Gorka Márquez and Nancy Xu Series 18: Nadiya Bychkova, Graziano Di Prima, Neil Jones and Nancy Xu Series 19: Luba Mushtuk, Jowita Przystał and Cameron Lombard Series 20: Neil Jones, Luba Mushtuk, Cameron Lombard, Lauren Oakley and Michelle Tsiakkas As of series 19, Chloe Hewitt is the only professional to have left the cast without ever having a celebrity partner. After suffering an injury, Neil Jones was unable to dance with his celebrity partner Alex Scott in weeks 6 and 7 of series 17. He continued to choreograph Scott's dances, while Kevin Clifton temporarily partnered her until Jones recovered. Professional partners Over the years, many dancers from the show have formed both professional and personal partnerships, dancing together competitively, on the show, or both. Darren Bennett and Lilia Kopylova are married, as are James and Ola Jordan and Aljaž Škorjanec and Janette Manrara, who became engaged after joining the show in 2013 and were married in 2017. Matthew and Nicole Cutler are divorced but remain professional partners; Karen Hauer and Kevin Clifton were engaged when Clifton entered the show in 2013 and were married prior to the 2015 series, before divorcing in 2018, while Neil and Katya Jones entered the show as a married couple before separating in 2019. Anton Du Beke and Erin Boag have danced as a professional couple since 1997, while Vincent Simone and Flavia Cacace are former Argentine Tango world champions as a duo and have done multiple tours together. Brendan Cole and Camilla Dallerup danced together for many years, including a stint in the original series of Come Dancing; following their split in 2004, Cole and Katya Virshilas formed a professional partnership, before parting in November 2009. Other current and former professional partnerships featured on the show include Dallerup and Ian Waite, Paul Killick and Hanna Karttunen, Andrew Cuerden and Hanna Haarala, Brian Fortuna and Kristina Rihanoff, Rihanoff and Robin Windsor, Pasha Kovalev and Anya Garnis, siblings Kevin and Joanne Clifton, AJ Pritchard and Chloe Hewitt, and Gorka Márquez and Karen Hauer. Presentation Dances On average, dances last for approximately 90 seconds. Musical accompaniment is provided by The Strictly Come Dancing Band. The Waltz, Cha Cha Cha, Quickstep, Rumba, Tango, Jive, Foxtrot, Paso Doble and Samba have all been danced since series 1. The American Smooth and Viennese Waltz were added in series 3. The Salsa and Argentine Tango were added