Mousa marked his return from injury as a second-half substitute, but it was his fellow Belgian international and former Spurs team-mate Nacer Chadli who broke the deadlock for West Bromwich Albion with eight minutes left.
Thankfully, Dele was on hand to restore parity on 89 minutes and ensure we at least took a point following another dominant display.
On Nacer's goal
"It was frustrating to go behind. We played so well in the first half, created so many chances and we should have finished them. It’s always tricky against this team, especially at set-pieces and that’s how they scored. Look at West Ham – they had 75 per cent possession against West Brom and lost 4-2. Teams will have possession here but they are good at what they do and you have to give them credit. At the end I’m just happy we scored."
On the reaction to Dele's equaliser
"I thought ‘let’s push for a second goal’ because we were on the front foot and we had the mental advantage. If we’d had five or 10 minutes more I believe we would have scored the second. At the end, you have to take the draw. It’s a tough place to come but we played well."
On his latest comeback
"I’m back now and I’m happy. I haven’t had too much luck this season with injuries but the team is doing well, I’m back and I’m happy the supporters are pleased to see me. I’ve missed it, of course. This is what it’s about, playing football."
On the outcome against the Baggies
"It was disappointing because we played very well. To give away a goal was disappointing but I’m happy we got back into the game. We know these games aren’t easy but we played well and created enough chances, that’s why it’s so disappointing. In the past, maybe we would have our heads down and be disappointed but we fought back. It’s so difficult to win here but it is everywhere in the Premier League."
On Ben Foster's heroics for Albion
"He had one of those days. We had some chances and on another day they would have been goals. There were some great saves and that made it really, really difficult for us. He had a very, very good game."
Feeling after drawing 1-1
"It’s both a point gained and two dropped! If you look at the whole game then we should have got two more points but from 1-0 down, to equalise right at the end means it’s a point gained."
On West Brom's efforts
"This isn’t a side you can just come here and walk over – they really work hard for each other as a team, but this was a game we dominated and we feel we should have won. When you have dominated a team so much, you can lose focus at certain moments and that was the case for their goal. They created a couple of chances and stuck one away. Like I said, it was a good performance from us but we have to try to win these games."