Five things we learned from this weekend's Six Nations

England and Ireland inched closer to a NatWest 6 Nations title decider by extending their 100 per cent records at the weekend.

Here, Press Association Sport looks at five things we learned from the action in round two.

Rugby's video technology is far from infallible

The role of the Television Match Official (TMO) was confirmed as rugby's chief thankless task as England ground past Wales 12-6 at Twickenham. Not even every camera angle, slow-motion replay under the sun and all the time in the world could throw up an immediate and clear answer to the question of whether Gareth Anscombe had scored or not. Glenn Newman, the TMO in question, ruled that Anthony Watson had beaten the Wales full-back to touch down, and therefore deny the visitors a try. Replays appeared to indicate that Anscombe had indeed touched down first - but other angles from build-up play suggested an earlier knock-on. Cue Wales fans decrying the decision and English insisting justice was upheld, however circuitously. The only surety? The technology still has limits, humans will make mistakes - and everyone must move on.

Injuries could slow Ireland's charge

Ireland's facile 56-19 thumping of sorry Italy threw up...