Throughout the season former player Clive Walker provides radio and TV commentary on Chelsea's games. Here he selects five aspects from Saturday's set back in the West Midlands that caught his eye…

1. Roberto Di Matteo had a difficult choice with his team selection. With the travelling some of the players had done during the week and the fact the Juventus game is coming up fast, it was a question of achieving a fine balance between the right players on the pitch to get the game won at West Brom and leaving the squad fresh enough for Tuesday. Unfortunately we didn't win the game and I was left feeling sorry for Di Matteo because of the problems caused by the international call-ups.

2. For West Brom's first goal we didn't work hard enough to close down the cross initially. Di Matteo said after the game that the team were defensively poor and players who were outside the penalty area weren't getting close enough to the ball. Any ball into the box is a dangerous one and for the first goal, David Luiz's body shape wasn't right which allowed Shane Long's stooping header at the far post. From then on we were chasing the game and didn't create enough first-half.

3. West Brom changed from the 4-4-2 they played the previous game and that was probably down to wanting an extra man in midfield and Romelu Lukaku not being available up front. He has played recently and done well but instead they brought in Peter Odemwingie to play in a wider role and he caused Chelsea a lot of problems. In a position he was maybe not that comfortable with he was defensively strong and wasn't frightened to go forward as normal, and he was in the right place to score their second goal.

4. After the second-half changes that brought Juan Mata and Oscar on and moved Daniel Sturridge into the middle, we looked brighter. I said during the commentary that I thought Fernando Torres would be coming off. The service into him at times was poor and I felt sorry for him for that but it was not a good game for him. Daniel Sturridge had a decent match but he had opportunities to score and didn't and if he wants to make that position his own he has to prove a point.

5. Sturridge started the game on the right with Victor Moses on the left but it was better when they changed around. Moses looked more comfortable right-hand side and he was a good asset for us with his running with the ball. He caused West Brom problems but he is another young player who had opportunities in front of goal but with Chelsea desperate for a strike on-target, they went wide.

Clive Walker is part of the commentary team for games on this season. Go to our Matchday Live section or hear it via our Mobile App.