We knew it was going to be a tough series.

"The Bulls have lots of experience, and they know what it takes to win a championship, so it's going to be a tough series."

There's no question it's been a tough series of weeks for the American people.

So we have to go in there and it's going to be a tough, physical series.

We're going to make this a very, very tough series for them.

We had a late night - plus mentally it's been a tough, long series - but I also think, you know, players are very close.

This was a tough series of articles, particularly the first one.

There were some tough series here when he was in Washington.

"That it's going to be a long, tough series for me."

"But you really hate to lose when the other team has come off a tough series and you've been sitting on your butt."