The Liverpool defender has highlighted the importance of his team-mate after he bagged the equaliser to secure the Reds a point against Chelsea at Stamford Bridge on Sunday
Suarez bagged the equaliser against Chelsea on Sunday to earn the Reds a point and take his Premier League tally for the season to eight goals in 11 matches.
The Uruguayan is now the joint-top scorer in the division along with Manchester United star Robin van Persie.
"Luis is a great player and he doing a fantastic job for us," Johnson told Liverpool's official website. "He's scoring goals for fun at the moment and the longer he does that the happier we will be."
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Johnson was satisfied to earn a draw from the match at Stamford Bridge and credited Liverpool for continuing to fight for a result after they had fallen behind.
The England full-back was left wondering, however, if the Reds could have even won the game after they finished the contest strongly following Suarez's equaliser.
"If we had been offered a point before the game we probably would have taken it," he admitted.
"Playing away at Stamford Bridge, it was always going to be difficult. Chelsea are very strong at home and we were expecting a tough game.
"We didn't start well, they got the goal and usually when Chelsea go in front here they win. A lot of teams would have rolled over and ended up getting destroyed by four or five.
"But we have a great spirit in the dressing room and a lot of heart. We always fight to the death. We did that and got our reward. They had a tough game in Europe in the week and I think that showed in the last 15 minutes as Chelsea tired a little bit.
"We were strong and in the closing stages we really drove at them. We could have got all three points in the end but overall I think we've got to be happy with the draw."