Hooked at halftime during their 3-3 draw with West Brom, Alonso upset Lampard as he was on the team bus before the final whistle.
“It wasn't like this," he told the London Evening Standard. “I watched the game upstairs and, with five minutes to go, they [West Brom's security] told me I cannot be here, so I went downstairs to the changing room. Then, when the referee blows the whistle, I went to the coach before the team got back.
"It was not with any bad intention that I wanted to leave, but I had a shower at half-time already. I was not happy, of course, with how the game went and everything, but it was not any intention to do that. I spoke to my team-mates straight after [to see] if someone felt offended, but everyone was okay.
“The manager didn't take it well, but I explained everything that happened. He thought I left before the end of the game, but I told him, 'no'. There were some medical staff in the changing room who can provide the right information."