The news that Johnny Sexton faces a race to be fit for Ireland's autumn internationals was bad enough in itself but when you see the cowardly way in which it happened, it makes it even worse.
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Mistimed tackles can easily happen on a rugby pitch without any malice involved but Toulon's Craig Burden definitely can't claim that this was merely mistimed. The South African hooker was surely lucky to get away with just a sin-binning.
Sexton received treatment before coming back on until midway through the second half when he was eventually forced off.
https://www.youtube.com/watch?v=IkhVIuug558&feature=youtu.be
