Cian Healy's brilliant note to himself after Sunday's clash of heads

"Lesson: Don't tackle the opposition with your face."

Cian Healy and England prop Dan Cole had a very painful looking clash of heads during

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The Ireland player, only recently returned from a long-term injury lay-off, suggested yesterday evening that he had learned a valuable lesson from the incident.

Lesson of the weekend: don't try tackle the opposition with your face... It won't work!

— Cian Healy (@ProperChurch) March 2, 2015

In case you missed it, here’s the collision that took place during the second half.

Ouch - we wouldn’t try that again either.