Tottenham Hotspur 1 West Brom 0: Big Match Report
The Baggies had a penalty shout turned down when Benoit Assou-Ekotto got his body in front of Marc-Antoine Fortune, with Rob Styles giving the benefit of the doubt to the Spurs left-back.
Fortune also volleyed over after being found unmarked at the far post by Gianni Zuiverloon's cross.
Had one of those chances resulted in a goal, there may have been a different outcome.
Spurs had been limited to half-chances, with Aaron Lennon stabbing wide after Scott Carson fumbled and Roman Pavlyuchenko thrashing over after Luka Modric slid him through down the left.
There would have been no complaints if the score was level at half-time but Jenas broke the deadlock two minutes before the break. He received the ball from Vedran Corluka, had time to take a touch as Youssouf Mulumbu backed off, before curling his effort into the bottom corner from 25 yards.
It was harsh on West Brom as Carson looked to have had his view blocked by referee Styles but that mattered little to Jenas, who would have been aware Capello was watching in the stands.
Capello was keeping an eye on the likes of Lennon, as well as Croatia pair Vedran Corluka and Modric, who England will be up against later this year in a World Cup qualifier.
Spurs' England centre-backs, Ledley King and Jonathan Woodgate, were trying their best to keep Fortune quiet. West Brom's lone forward forced Gomes into a save with a low shot early in the second half, then struck the post with an effort that deflected off Corluka.
Mowbray then brought on Jay Simpson to offer Fortune support, while Jermain Defoe was introduced for Pavlyuchenko.
Shelton Martis had one header flash over and another cleared off the line by Defoe, while Borja Valero cleared his own crossbar when he made a last-ditch clearance at the other end.
Gomes was forced into a late save, at full stretch, to deny Robert Koren's deflected effort. Lennon struck a post in the final minute.