Buttler was speculated to be on course to replace Steve Smith as the RR captain.
The speculations were given rise by the franchise's own social media admin after a tweet on Friday (October 16) afternoon hinted a possible take over of captaincy by opener Jos Buttler in replacement of Steve Smith.
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The rumour spread wide over social media, especially as Smith, like Karthik, isn't enjoying the best of IPL seasons with the bat. The Australian right-hander has made only 163 runs at an average of 20.37, going past fifty on only two occasions.
Smith's insipid run has coincided with RR having a disappointing campaign, languishing in the bottom half of the points table with only three wins in eight matches.
Buttler's name is being touted by many as a potential new skipper for RR. The explosive batsman has previously filled up for England in white-ball cricket in the occasional absence of regular captain Morgan.
However, the rumour of Buttler taking over was put to rest by the RR admin after self-triggering it at the first place, when a clarifying tweet was made from their official handle, reading "when admin realises he started a false rumour" in the caption of a funny GIF.