There is a chance of course that this could be Ross Barkley's last game for Everton at Goodison. His goal has lit the game up.

Another one to note in this second half - Tom Davies is playing at right-back. 

Image source, Reuters

James McClean is out there by the way. I thought TP may have pulled him.

And a chance! Ben Foster gets down really well as Victor Moses beats McClean again and almost finds the bottom corner.  

Image source, Reuters

Away we go again. A goal for Chelsea could be enough to win the title. 

Chance for Watford! Daryl Janmaat shows some real pace to motor into space and put in a cross, Troy Deeney is sliding in and looks certain to score - but a fine challenge forces him to prod it wide. 

These are the average positions from the first half at The Hawthorns. Only Salomon Rondon has dared to venture much beyond the halfway line for West Brom, while David Luiz is having a private party in Chelsea's defence. 

Image source, .

Enner Valencia, fresh off the bench, bounds into the area and hits a low cross/shot which is deflected away for a corner.

Valencia then puts in a testing cross which Heurelho Gomes pouches. 

Image source, Reuters

As it stands, Chelsea will not be champions tonight.

They could be champions on Sunday - if Spurs didn't beat Manchester United. 

Phil McNulty
BBC Sport chief football writer at The Hawthorns

Pretty much as expected - Chelsea with most of the possession but West Brom well organised and fiercely determined.

Chelsea are seeking the goal that could make them Premier League champions but Tony Pulis's side giving nothing away.

Agubata Odinaka: For a team renowned for it, West Brom's set pieces have been rather woeful tonight. Need to get a good delivery in

Back under way at Goodison. 

Everton have made a change - Mason Holgate has gone off and Enner Valencia is on. 

Jermaine Jenas
Former England midfielder on BBC Radio 5 live

Weirdly I think both of the managers will be reasonably happy.

Chelsea have dominated the game as we expected and have been sharp in attacking areas. They have not created open opportunities but they have had shots on goal.

West Brom have defended well. They are very tough to break down and on the counter attack if they could pick the pass then there are opportunities there for them. 

Image source, Reuters

Final warning? James McClean gets a lengthy chat from referee Michael Oliver as he protests against another decision.

I wouldn't be surprised to see him replaced at the break. 

Jermaine Jenas
Former England midfielder on BBC Radio 5 live

There have been a couple of opportunities for Chelsea and Costa but West Brom are strong as their back four doesn't go outside of the six-yard box. 

Chris Brunt and James McClean come back and play like full backs and that makes it very difficult for Costa to get a shot off.

The chat all season is that Cesc Fabregas is going to leave Chelsea this summer - as a neutral I hope he stays. A lovely footballer to watch. 

Here endeth the announcement.

Image source, AFP

Keep it, keep it, keep it, keep it, keep it, keep it, keep it, keep it, keep it, keep it, keep it, keep it, keep it, find Diego Costa - WIDE.

Kyle Utterson: Get the feeling it's only a matter of time before Chelsea score. They are so much on top

A standing ovation for a throw in! Ironic cheers from the Albion fans who think that they are not getting the rub of the green from the officials tonight.

No questioning the commitment from West Brom so far. As you'd expect. Demand. 

Image source, Reuters