Time for the hard-core. It's post-US Open time and the tour continues this week in Monastir and Guadalajara. Rory Jiwani and Nigel Seeley give their picks for the tournaments in this week's Betting Weekly: WTA. Elise Mertens is the only person to ever win the Monastir tournament. Danielle Collins starts her swan song at the Guadalajara WTA 500 event.