Somehow Chelsea have managed to go from a title winning team, only conceding 32 goals in 38 games, to winning only one game from four and shipping nine goals.
Many people are stumped as to how this has happened, including "the special one" Jose Mourinho.
John Terry's start to this season has been far from what we expect of the commanding centre back. His red card, received after being caught napping by West Brom's Solomon Rondon represented the declining ability of the former great.
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Being substituted for the first time ever by Mourinho also looked like it significantly hurt Terry, his pride taking a severe hit and some doubts whether he would return to the side.
That being said, the blame does not solely lie at John Terry's doorstep, most of it should be laid on the shoulders of Branislav Ivanovic.
In all four games this season Ivanovic has been run ragged by every winger he's squared up against, showing no signs at all of the Mr. Reliable that we are used to from Ivanovic.
The high defensive line that Mourinho seems to have adopted could have something to with why these two players are struggling. It's no secret that Ivanovic and Terry are not blessed with an abundance of pace and by playing a high line they are left particularly vulnerable to balls over the top, like the ones against Swansea and West Brom that both led to red cards.
We may have seen the last of the big Serb at right back for Chelsea with his contract up at the end of the season and no real rumblings of an extension for him.
There have even been some rumours he might end up losing his place in the back four if his poor start continues. Baba Rahman the Ghanaian left back signed from Augsburg in the summer could be the man to push him out.
Cesar Azpilicueta would effectively be the one taking Ivanovic's place and Rahman would slot in at left back. That would certainly add pace and help them avoid being caught out should they decide to stick with playing a high defensive line.
It's evident that, after Manchester City's four clean sheets, Chelsea need to do something or risk letting the title slip away. After missing out on John Stones, being proactive and dropping Branislav Ivanovic could be the best move for Chelsea.
Ivanovic isn't the only problem Chelsea have but replacing him would be a positive step if not an instant fix.