Paris Saint-Germain and Real Sociedad begin the knockout phase of Champions League play when they square off in the first leg of a Round of 16 matchup on Wednesday at Parc des Princes in Paris. PSG advanced to the knockout stage by finishing second in Group F and winning the goal differential tiebreaker against AC Milan. Meanwhile La Real were one of the biggest surprises of the group stage, taking the top spot in Group D over last season's runners-up, Inter Milan.

Kickoff is set for 3 p.m. ET. Paris Saint-Germain are the -145 favorites (risk $145 to win $100) in the latest PSG vs. Real Sociedad odds, with La Real the +450 underdogs. A draw is priced at +275, and the over/under for total goals scored is 2.5. (For more soccer coverage, click here.)

Before you lock in your Real Sociedad vs. PSG picks or Champions League predictions, you need to see what proven soccer expert Martin Green has to say.

After working in the sports betting industry for several years, Green became a professional sports writer and handicapper and has covered the game worldwide. Last year he was profitable in multiple areas on his soccer picks, including Euro qualifying (+6.30 units), the EFL Cup (+4.47), the FA Cup (+3.07) and the Champions League (+3.05) among others.

Green knows that Kylian Mbappé is having another outstanding season. Widely regarded as one of the best players in the world, the 25-year-old French forward leads Ligue 1 in goals this season, with 20, nine more than his closest pursuers. He also has scored 30 goals in 29 matches across all competitions this season.

The expert has also taken into account that La Real have played excellent defense so far in the Champions League. Led by the centerback duo of Igor Zubeldia and Robin Le Normand, the Basque club conceded just two goals across six group stage matches despite facing some world class attacking talent. In La Liga, Real Sociedad have allowed just 22 goals, which ranks fourth in the league.

Now, Green has taken a close look at this Champions League match from all sides. He is leaning Under on the goal total and has locked in two confident best bets and a full breakdown of this Champions League match. You ABSOLUTELY need to see his picks and analysis before making any selections of your own. 

So who wins PSG vs. Real Sociedad, and where does all the betting value lie? ... Join SportsLine now to see Martin Green's best bets for Real Sociedad vs. PSG, all from the soccer expert who was profitable in multiple areas last year.