Importance of Sadio Mane's goals

http://www.dailyecho.co.uk/sport/saints/news/11841477._/?ref=mac

Article from the Echo discussing how important Mane's goals have been to Saints with 7 points earned in games where he was Saints' only scorer.

 

Am I missing something? Why has he bagged us seven points, and not ten?

 

''Mane has scored the winners in 1-0 victories over Stoke, QPR and Palace, as well as bagging a 1-1 draw with Chelsea to net the seven points for his side''.

See what you mean.

 

Take away his goals and we would have still drawn three of those matches.