Ukraine ended a run of five straight draws with a 2-1 victory in Finland to consolidate their grip on second place in Group D.
The Euro 2020 quarter-finalists are two points ahead of Bosnia and Herzegovina, who beat Kazakhstan 2-0, and four points behind France The win takes Scotland four points clear of Israel in second place in Group F with three matches remaining as they bid to qualify for the World Cup for the first time since 1998.
The Swiss are three points behind Italy in Group C with a game in hand and lead third-placed Northern Ireland by six points.
"It has been a long time coming and it's about time that I scored because everyone has been saying it to me," Grealish told the BBC.
The Scots still hold a slim chance of topping the group, trailing leaders Denmark, who cruised past Moldova 4-0 in Chisinau, by seven points.
Bukayo Saka made the points safe before half-time and Roma striker Tammy Abraham made the most of a rare start by scoring in the 59th minute.
The Greeks remain unbeaten and are three points behind Sweden and also have a game in hand on Spain.
England remain four points clear at the top of Group I after second-placed Albania won 1-0 against Hungary in Budapest..Read Full Story