Originally posted by Darth Thor
Im almost certain it comes up in his conversation with Anakin before he goes to face Grievous.Something along the lines of Anakin saying - it didnt go that well last time you faced him... then Kenobi replying - Im more familiar with his style now...
Pretty sure I couldnt have imagined that. But will have to find my copy of ROTS to confirm.
If im right though, then some really arent the Legends fans/experts they make themselves out to be.... Well not next to me at least.
Ok I found it, but I'm not seeing any mention or implication that they fought before.
Here's the quote.
"I know: the Sith." The word left a bitter taste in Anakin's mouth. The Council's manipulation had a rank stench of politics on it. "I just-" Anakin shrugged helplessly, looking away. "I don't like you going off without me like this. It's a bad idea to split up the team. I mean, look what happened last time."
"Don't remind me."
"You want to go spend another few months with somebody like Ventress? Or worse?"
"Anakin." Anakin could hear a gentle smile in Obi-Wan's voice. "Don't worry. I have enough clones to take three systems the size of Utapau's. I believe I should be able to handle the situation, even without your help."
Anakin had to answer his smile. "Well, there's always a first time."
Obi-Wan said, "We're not really splitting up, Anakin. We've worked on our own many times-like when you took Padme to Naboo while I went to Kamino and Geonosis."
"And look how that turned out."
"All right, bad example," Obi-Wan admitted, his smile shading toward rueful. "Yet years later, here we all are: still alive, and still friends. My point, Anakin, is that even when we work separately, we work together. We have the same goals: end the war, and save the Republic from the Sith. As long as we're on the same side, everything will come out well in the end. I'm certain of it."
"Well . . ." Anakin sighed. "I suppose you could be right.
You are, once in a while. Occasionally."
Obi-Wan chuckled and clapped him on the shoulder.
"Farewell, old friend."
- ROTS Novel
All Anakin is worried about is the team splitting up and referencing some bad time of what happened that doesn't exactly give any details.