Anderson has been out of action since the Swans drew at Nottingham Forest at the end of January although he did make a 60 second cameo appearance against MK Dons at the Liberty Stadium – a 60 second cameo where he set up a great chance for Febian Brandy.
But Anderson will now miss pretty much the rest of the month and by the time he returns to action he could find that the Swans are already promoted – a massive achievement if it is secured by the end of March.
Speaking to the Evening Post, Anderson said "It's so frustrating
"I thought I was close to coming back last week but I had a scan and the news wasn't great.
"The injury is coming on but not as fast as I would have liked and it could be another two or three weeks before I'm playing again.
"It was quite a serious tear that I suffered and I've just got to rest.
"I will push on as quickly as I can because I'm desperate to start playing again, but I'm not going to push it to the point where my hamstring just goes again."
The Swans were not slow in blaming the referee at Forest for the injury – chronic traffic around Nottingham meant the club didn't arrive until half hour before kick off, hugely reducing their warm up time
"The frustrating thing is that I can do everything now apart from sprint, but the problem is that sprinting is my game.
"I can kick a ball and do all the other things in training, but as soon as I get to 80 per cent running the hamstring goes again.
"It's disappointing, but I just have to keep working to get it right and hopefully make my come back towards the end of the season.
"We seem to have been dropping like flies lately," Anderson admitted.
"But I think the lads showed at Huddersfield last weekend what a great squad we've got and that any one of our players can come in and do a job."