Match fixing rears its ugly head

"Police in Spain have arrested 34 people in connection with a suspected match-fixing ring in both Spain and Portugal.
The arrested include six tennis players, the country's interior ministry said, without identifying any of the individuals.
They are accused of deliberately arranging the loss of tennis games in at least 17 different events.
Authorities said their earnings from the manipulation were over €500,000 (£420,420).
A police spokesperson told the AFP news agency that players were offered between €500 (£419) and €1,000 (£837) to throw matches."
http://www.bbc.co.uk/news/world-europe-38172183

Nobody in the top 800 says the article.

A police spokesperson told the AFP news agency that players were offered between €500 (£419) and €1,000 (£837) to throw matches."

I can not see any of the top players interested in that amount of money

I don't think the top players do throw matches, or even think about it. They might not be too fussed about losing on some occasions (see also, Stan) but as a whole they make more than enough money from the game to not need a little extra. However, those players who are struggling to make a living from the tour, well you could see them being tempted by a quick buck. My gut feeling is that in Tennis margins are so fine at the top of the sport that a moderately smart player could comfortably get away with throwing a match: simply throw in the odd loose point or service game, leave a few more balls short for your opponent to attack, etc. The article suggests that players who have been caught have been so because they were throwing matches across quite a few events, which seems more plausible (patterns emerging).

Didn't stop Davy though.

There is of course the possibility that a top player could throw a match if based not just on financial gain but on financial gain combined with a threat against their family.