Looking for a rebound from Friday's selling action, Kevin Green is watching the $6300 level on the S&P 500 (SPX) as a possible upside resistance in today's trading. He says the 20-day moving average is another key technical hurdle for any rally. Looking at volatility, KG compares the VIX Spread to S&P 500 futures mapping out possible correlation patterns taking shape. KG adds a Russia sanctions watch list to his radar as geopolitical risks mount.