Does Pacquiao have any experience fighting with his back on the ropes?

[SweetPea]

Just be careful when you try to corner PAC... That's where he's very dangerous and he will act like a cornered tiger... We saw this in the Morales 3rd fight...
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OK, but Morales is a completely different fighter than Hatton. When Morales backed Pac to the ropes, Morales was standing upright at a slight distance and letting his hands go.

Hatton likes to bull his opponents into the ropes, clinch them, lean on them, etc. True "infighting." It's a completely different thing, and presents a different challenge to Pacquiao.