According to HLTV.org, the match between SK Gaming and H2k Gaming in ESL Pro Series Nordic II will be replayed due to the use of net_graph 3 by 2 of SK's players. After review, it was determined that the 16-2 win on April 6th by SK may have been tainted as net_graph was shown on two screenshots during the match. This does not, however, mean that anyone from SK was using this to their advantage. To be safe and fair, ESL has requested that the match be replayed.
For those who don't know, many have speculated that when net_graph 3 is enabled, one of your values will increase when another player is present in the area.
According to the ESL Pro Series, the match is to be replayed on April 14th, 2010.
Source: HLTV.org