The Champions League knockout stage continues with two tantalizing matchups on Tuesday at 3 p.m. ET. Robert Lewandowski and Bayern Munich travel to London to take on Chelsea, while Napoli welcomes Lionel Messi and Barcelona to Stadio San Pauolo. Before locking in your UCL DFS lineups for any tournaments, cash games, or 50-50s on sites like FanDuel and DraftKings on Tuesday, you NEED to see what Mike McClure has to say.

McClure is a DFS professional with nearly $2 million in career winnings. He's also a predictive data engineer at SportsLine who uses a powerful prediction model that simulates every minute of every game 10,000 times, taking factors like matchups, statistical trends and injuries into account. This allows him to find the best UCL DFS values and create optimal lineups that he shares only over at SportsLine. They're a must-see for any UCL DFS player.

For Tuesday, we can tell you McClure is high on McClure is high on Bayern Munich midfielder Serge Gnabry at $7,400 on DraftKings and $18 on FanDuel. Part of McClure's optimal UCL DFS strategy Tuesday also includes rostering Barcelona forward Lionel Messi ($10,800 on DraftKings, $24 on FanDuel), who's recorded 18 goals and 12 assists in 20 La Liga matches this season. 

McClure is also targeting an undervalued player who's primed to blow up on Tuesday, giving you a HUGE return! Picks like these could be the difference between winning your UCL DFS contests or going home with nothing. You ABSOLUTELY need to see who it is before locking in any lineups.

So what are the optimal UCL DFS tournament and cash game lineups for Tuesday? ... Join SportsLine right now to see DFS millionaire Mike McClure's complete optimal tournament and cash game lineups for FanDuel and DraftKings, and cash in big on UCL DFS!