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RC Toulon's French centre Mathieu Bastareaud is tackled by Scarlets' Welsh centre Scott Williams and Scarlets' New Zealand centre Hadleigh Parkes (R) during the European Champions Cup rugby union pool 3 match between Scarlets and Toulon at Parc y Scarlets in Llanelli, south west Wales, on December 18, 2016. Scarlets won the game 22-21. / AFP / Geoff CADDICK (Photo credit should read GEOFF CADDICK/AFP via Getty Images)

RC Toulon's French centre Mathieu Bastareaud is tackled by Scarlets' Welsh centre Scott Williams and Scarlets' New Zealand centre Hadleigh Parkes (R) during the European Champions Cup rugby union pool 3 match between Scarlets and Toulon at Parc y Scarlets in Llanelli, south west Wales, on December 18, 2016.
Scarlets won the game 22-21. / AFP / Geoff CADDICK        (Photo credit should read GEOFF CADDICK/AFP via Getty Images)

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RC Toulon's French centre Mathieu Bastareaud (3rd R) is tackled by Scarlets' New Zealand centre Hadleigh Parkes (2nd R) and Scarlets' Welsh fly-half Rhys Patchell (C) during the European Champions Cup rugby union pool 3 match between Scarlets and Toulon at Parc y Scarlets in Llanelli, south west Wales, on December 18, 2016. / AFP / Geoff CADDICK (Photo credit should read GEOFF CADDICK/AFP via Getty Images)

RC Toulon's French centre Mathieu Bastareaud (3rd R) is tackled by Scarlets' New Zealand centre Hadleigh Parkes (2nd R) and Scarlets' Welsh fly-half Rhys Patchell (C) during the European Champions Cup rugby union pool 3 match between Scarlets and Toulon at Parc y Scarlets in Llanelli, south west Wales, on December 18, 2016. / AFP / Geoff CADDICK        (Photo credit should read GEOFF CADDICK/AFP via Getty Images)

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RC Toulon's New Zealand centre Maa Nonu (R) is tackled by Scarlets' Welsh flanker Aaron Shingler during the European Champions Cup rugby union pool 3 match between Scarlets and Toulon at Parc y Scarlets in Llanelli, south west Wales, on December 18, 2016. / AFP / Geoff CADDICK (Photo credit should read GEOFF CADDICK/AFP via Getty Images)

RC Toulon's New Zealand centre Maa Nonu (R) is tackled by Scarlets' Welsh flanker Aaron Shingler during the European Champions Cup rugby union pool 3 match between Scarlets and Toulon at Parc y Scarlets in Llanelli, south west Wales, on December 18, 2016. / AFP / Geoff CADDICK        (Photo credit should read GEOFF CADDICK/AFP via Getty Images)

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LLANELLI, WALES - DECEMBER 18: Toulon centre Mathieu Bastareaud is tackled by Rhys Patchell during the European Rugby Champions Cup match between Scarlets and RC Toulonnais at Parc Y Scarlets on December 18, 2016 in Llanelli, United Kingdom. (Photo by Stu Forster/Getty Images)

LLANELLI, WALES - DECEMBER 18:  Toulon centre Mathieu Bastareaud is tackled by Rhys Patchell during the European Rugby Champions Cup match between Scarlets and RC Toulonnais at Parc Y Scarlets on December 18, 2016 in Llanelli, United Kingdom.  (Photo by Stu Forster/Getty Images)

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RC Toulon's French flanker Charles Ollivon (R) is tackled by Rhys Patchell Scarlets' Welsh fly-half during the European Champions Cup rugby union pool 3 match between Scarlets and Toulon at Parc y Scarlets in Llanelli, south west Wales, on December 18, 2016. / AFP / Geoff CADDICK (Photo credit should read GEOFF CADDICK/AFP via Getty Images)

RC Toulon's French flanker Charles Ollivon (R) is tackled by Rhys Patchell Scarlets' Welsh fly-half during the European Champions Cup rugby union pool 3 match between Scarlets and Toulon at Parc y Scarlets in Llanelli, south west Wales, on December 18, 2016. / AFP / Geoff CADDICK        (Photo credit should read GEOFF CADDICK/AFP via Getty Images)