Lukaku looked set to re-join the Midlands club on transfer deadline day in the summer but a last minute switch to Everton scuppered Clarke’s plans.
West Brom did add Victor Anichebe and Sebastian Sessegnon to their squad at the close of the transfer window but after Lukaku’s fine form at the Hawthorns last season, it was natural that Albion were desperate to bring him back.
Chelsea prevented Lukaku returning to West Brom on numerous occasions during the summer as Jose Mourinho appeared to have the Belgian in his plans but the last minute decision to allow him to go to Everton is water under the bridge for former Blues assistant Clarke.
“What’s the relevance? It’s gone,” he said.
“We did good business on deadline day and got in some good players.
“Since we’ve brought those players in we’ve picked up 12 points from seven matches, which is a good return. That’s all we need to concentrate on.
“There’s no point going over old ground that’s been covered before. We want to just look forward to the game now. As my mum used to say, there’s no point crying over spilt milk.
“I’ve got a lot of good friends at Chelsea and I look forward to seeing them at the weekend.”