"They don't want their stars guarding the other team's best scorer, because it's tiring for someone to stop the guy who's a main target on offense, then come down and get points on the other end as well, " Shaw said.

WSJ: How Indy Solved Anthony

It's just tiring to keep going back to what happened then.

CNN: Commentary: Enough with baseball and steroids

The back and forth of Apple and Samsung's spat can be tiring, it's true, but the legal debacle has its moments.

ENGADGET: Apple exec talks about the iPhone's early days, the secrecy of 'Project Purple'

"The delay was a blessing as it's been a tiring six weeks, " said Campbell.

BBC: Michael Campbell in action

It's been a very tiring week and being in the lead quite a long way is demanding.

BBC: SPORT | Golf | Levet, Weir challenge fades

And it's going to be tiring mentally because you have to be on top of your game all the time.

BBC: It's not been a very good couple of days for me.

Many investors have been concerned for some time that Groupon's customers are tiring of the deals it offers, and that it is facing more competition from other start-ups and from big firms such as Amazon and Google, who have been copying its strategy.

BBC: Groupon results better than expected

It was Van der Vaart's final contribution as he was replaced by Peter Crouch, with Villa replacing the tiring Fabian Delph with veteran Robert Pires.

BBC: Aston Villa 1-2 Tottenham