Navidi departed in the second minute with what appeared to be a serious elbow injury but it did not stop a rampant Cardiff, who ran in five first-half tries.
It appears that the backrow has dislocated his elbow.
Reports coming out of Cardiff, however, suggested that the elbow was relocated by medics almost immediately, suggesting a recovery time of roughly a month.
Cardiff Blues say that it looks like Josh Navidi has dislocated his elbow @BBCScrumV
— Gareth Rhys Owen (@g_r_owen) March 22, 2019
A picture has emerged of the moment the Wales flanker did the damage to his elbow.
A dislocated elbow suffered by Josh Navidi slightly overshadows proceedings this evening. Everything crossed it’s not as bad as it could be. pic.twitter.com/eXbetU0Cc2
— Cardiff Rugby Life (@CardiffRugbyWeb) March 22, 2019
The bonus-point win strengthened Blues’ hopes of a Pro 14 play-off spot and the victory allowed them to complete a handsome double over their opponents, having won 34-5 at Parc y Scarlets back in December.
After Navidi’s departure, Halfpenny had the first chance for points but his 40-metre penalty attempt rebounded back off a post.
The visitors were soon made to pay with Anscombe putting Blues in front with a penalty before a well-judged kick from Jarrod Evans secured a platform in the opposition 22. From there a burst from Shane Lewis-Hughes put the defence on the back foot to set up the first try for Lane.
Anscombe converted before Cardiff produced a thrilling move, which culminated in Summerhill running 30 metres to score Blues’ second try in three minutes.
A dreadful first half for Scarlets continued when they conceded a third try. Lane created it by bursting between attempted tackles from James Davies and Nicholas before producing a neat off-load for Turnbull to cross.
In the 33rd minute, Blues picked up their bonus point when Willis Halaholo brushed aside Rhys Patchell’s tackle to give Summerhill an unopposed run to the line for his second. A clever kick from Jarrod Evans then resulted in Lane winning the race for the touchdown and Anscombe’s fifth successful conversion of the half gave his side a 38-0 interval lead.
The substitutions paid dividends as the visitors controlled the first 10 minutes of the second half. Nicholas was denied a try as the TMO ruled that the wing had lost control as he dived for the line but eventually the pressure was rewarded when Rob Evans forced his way over.
Scarlets were now a completely different proposition as they continued to dominate, aided by the sin-binning of Blues’ prop Dillon Lewis for a scrum offence.
Rob Evans crashed over for his second but Scarlets’ miserable night continued when he left with an arm injury before Anscombe’s late penalty took Blues past 40, with a late try from Nicholas a mere consolation.
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