I think I figured this out.So, I accidentally cleared the live IPL notification today, and the Now bar disappeared.To get the sports Now bar back, I did this:Settings -> Lockscreen and AOD -> Now Bar.Toggle the switch for Sports from Google off, and ...
Go to settings-lockscreen & AOD-Now Bar- toggle all options on.P.S.- Never clear live notifications from notification panel otherwise Now Bar will not show up.Please accept this as solution if you are satisfied by clicking onto the 3 dots at the righ...
Go to settings-lock screen and AOD- Now Bar-enable your preferences.For sports, enable sports from Google and ensure to follow the teams/sports/event you want to see in Nowbar.