The singer made the headlines when he was tackled by Gabriel Agbonlahor during Stiliyan Petrov's charity match last weekend, resulting in Tomlinson hobbling off the pitch and vomiting on the touchline.
Tomlinson may have hurt himself, but the former X Factor contestant happily posed for photographs with Lambert's three daughters Victoria, Kira and Nicola.
"He had a laugh and a joke with them," the Daily Star quotes Lambert as saying. "He was really, really nice and had his picture taken with them."
Agbonlahor received online death threats from One Direction fans following the tackle.